1
00:00:00,000 --> 00:00:03,092
The bottom shows the number of pets.

2
00:00:03,183 --> 00:00:04,739
Zero.

3
00:00:04,833 --> 00:00:06,389
Zero.

4
00:00:06,483 --> 00:00:09,479
Two students have zero pets.

5
00:00:09,566 --> 00:00:11,218
One.

6
00:00:11,316 --> 00:00:12,968
One.

7
00:00:13,066 --> 00:00:14,718
One.

8
00:00:14,816 --> 00:00:17,644
Three students have one pet.

9
00:00:17,733 --> 00:00:19,097
Two.

10
00:00:19,183 --> 00:00:20,547
Two.

11
00:00:20,633 --> 00:00:21,997
Two.

12
00:00:22,083 --> 00:00:23,447
Two.

13
00:00:23,533 --> 00:00:26,337
Four students have two pets.

14
00:00:26,433 --> 00:00:28,085
Three.

15
00:00:28,183 --> 00:00:29,835
Three.

16
00:00:29,933 --> 00:00:32,905
Two students have three pets.

17
00:00:33,000 --> 00:00:34,412
Four.

18
00:00:34,500 --> 00:00:37,256
One student has four pets.

19
00:00:38,350 --> 00:00:40,650
Which is most common?

20
00:00:42,750 --> 00:00:46,826
Two pets. Four students.

21
00:00:48,616 --> 00:00:50,676
What is the range?

22
00:00:52,766 --> 00:00:55,114
From zero to four.

23
00:00:59,716 --> 00:01:02,592
How many have more than three?

24
00:01:04,683 --> 00:01:06,671
One student.

25
00:01:11,033 --> 00:01:16,933
Daily sleep time of 30 students. The bottom shows hours.

26
00:01:17,033 --> 00:01:20,101
A histogram groups the sleep times.

27
00:01:22,200 --> 00:01:25,244
Which group has the most students?

28
00:01:27,333 --> 00:01:31,961
Eight to nine hours. Eleven students.

29
00:01:33,750 --> 00:01:37,106
How many sleep less than seven hours?

30
00:01:39,200 --> 00:01:41,332
Four students.

31
00:01:43,116 --> 00:01:46,328
How many sleep at least nine hours?

32
00:01:48,416 --> 00:01:50,476
Eight students.

33
00:01:54,766 --> 00:02:01,026
Daily exercise time of 30 students. The bottom shows minutes.

34
00:02:01,116 --> 00:02:02,504
Ten.

35
00:02:02,600 --> 00:02:03,988
Ten.

36
00:02:04,083 --> 00:02:07,463
Two students exercise ten minutes.

37
00:02:07,550 --> 00:02:09,178
Twenty.

38
00:02:09,266 --> 00:02:10,894
Twenty.

39
00:02:10,983 --> 00:02:12,611
Twenty.

40
00:02:12,700 --> 00:02:16,224
Three students exercise twenty minutes.

41
00:02:16,316 --> 00:02:17,824
Thirty.

42
00:02:17,916 --> 00:02:19,424
Thirty.

43
00:02:19,516 --> 00:02:21,024
Thirty.

44
00:02:21,116 --> 00:02:24,568
Three students exercise thirty minutes.

45
00:02:24,666 --> 00:02:26,318
Forty.

46
00:02:26,416 --> 00:02:28,068
Forty.

47
00:02:28,166 --> 00:02:29,818
Forty.

48
00:02:29,916 --> 00:02:31,568
Forty.

49
00:02:31,666 --> 00:02:33,318
Forty.

50
00:02:33,416 --> 00:02:36,868
Five students exercise forty minutes.

51
00:02:36,966 --> 00:02:38,618
Fifty.

52
00:02:38,716 --> 00:02:40,368
Fifty.

53
00:02:40,466 --> 00:02:42,118
Fifty.

54
00:02:42,216 --> 00:02:43,868
Fifty.

55
00:02:43,966 --> 00:02:47,298
Four students exercise fifty minutes.

56
00:02:47,383 --> 00:02:49,107
Sixty.

57
00:02:49,200 --> 00:02:50,924
Sixty.

58
00:02:51,016 --> 00:02:52,740
Sixty.

59
00:02:52,833 --> 00:02:56,357
Three students exercise sixty minutes.

60
00:02:56,450 --> 00:02:58,318
Seventy.

61
00:02:58,416 --> 00:03:01,988
One student exercises seventy minutes.

62
00:03:02,083 --> 00:03:03,735
Eighty.

63
00:03:03,833 --> 00:03:07,261
One student exercises eighty minutes.

64
00:03:07,350 --> 00:03:09,002
Ninety.

65
00:03:09,100 --> 00:03:12,624
One student exercises ninety minutes.

66
00:03:13,716 --> 00:03:16,592
How many data points are there?

67
00:03:18,683 --> 00:03:20,863
Thirty students.

68
00:03:23,233 --> 00:03:26,205
What is the exercise time range?

69
00:03:28,300 --> 00:03:31,200
From ten to ninety minutes.

70
00:03:35,250 --> 00:03:38,630
What is the most common exercise time?

71
00:03:40,716 --> 00:03:45,080
Forty minutes. Five students.

72
00:03:46,866 --> 00:03:50,606
How many exercise more than sixty minutes?

73
00:03:52,700 --> 00:03:54,808
Three students.

74
00:03:59,100 --> 00:04:05,120
Heights of 40 students. The bottom shows height in centimeters.

75
00:04:05,216 --> 00:04:08,020
A histogram groups the heights.

76
00:04:10,116 --> 00:04:13,424
Which height range has the most students?

77
00:04:15,516 --> 00:04:20,696
One forty to one forty-nine. Eleven students.

78
00:04:22,483 --> 00:04:26,031
How many are one forty to one forty-nine?

79
00:04:28,116 --> 00:04:30,368
Eleven students.

80
00:04:32,166 --> 00:04:35,258
How many are at least one sixty?

81
00:04:37,350 --> 00:04:39,434
Nine students.

82
00:04:41,233 --> 00:04:44,301
How many are under one fifty?

83
00:04:46,400 --> 00:04:48,868
Twenty-two students.

84
00:04:53,166 --> 00:04:58,994
Weekly allowance of 15 students. The bottom shows yuan.

85
00:04:59,083 --> 00:05:00,831
Fifteen.

86
00:05:00,916 --> 00:05:02,664
Fifteen.

87
00:05:02,750 --> 00:05:05,818
Two students get fifteen yuan.

88
00:05:05,916 --> 00:05:07,544
Twenty.

89
00:05:07,633 --> 00:05:09,261
Twenty.

90
00:05:09,350 --> 00:05:10,978
Twenty.

91
00:05:11,066 --> 00:05:14,110
Three students get twenty yuan.

92
00:05:14,200 --> 00:05:16,188
Twenty-five.

93
00:05:16,283 --> 00:05:18,271
Twenty-five.

94
00:05:18,366 --> 00:05:21,650
Two students get twenty-five yuan.

95
00:05:21,750 --> 00:05:23,258
Thirty.

96
00:05:23,350 --> 00:05:24,858
Thirty.

97
00:05:24,950 --> 00:05:27,802
Two students get thirty yuan.

98
00:05:27,900 --> 00:05:29,552
Forty.

99
00:05:29,650 --> 00:05:32,502
One student gets forty yuan.

100
00:05:32,600 --> 00:05:34,252
Fifty.

101
00:05:34,350 --> 00:05:37,274
One student gets fifty yuan.

102
00:05:37,366 --> 00:05:39,210
One hundred.

103
00:05:39,300 --> 00:05:42,392
One student gets one hundred yuan.

104
00:05:43,483 --> 00:05:46,455
What is the most common allowance?

105
00:05:48,550 --> 00:05:52,674
Twenty yuan. Three students.

106
00:05:54,466 --> 00:05:57,126
What is the highest allowance?

107
00:05:59,216 --> 00:06:01,420
One hundred yuan.

108
00:06:03,216 --> 00:06:06,548
Are there any unusually high values?

109
00:06:08,633 --> 00:06:12,085
Yes. One hundred.

110
00:06:13,883 --> 00:06:16,999
How many have less than thirty yuan?

111
00:06:19,083 --> 00:06:21,263
Seven students.

112
00:06:25,550 --> 00:06:31,498
Math test scores of 50 students. The bottom shows points.

113
00:06:31,583 --> 00:06:34,675
A histogram groups the test scores.

114
00:06:36,766 --> 00:06:40,098
Which score range has the most students?

115
00:06:42,183 --> 00:06:46,883
Eighty to eighty-nine. Thirteen students.

116
00:06:48,683 --> 00:06:51,991
How many passed, above sixty?

117
00:06:54,083 --> 00:06:56,551
Thirty-five students.

118
00:06:58,350 --> 00:07:01,106
How many scored above eighty?

119
00:07:03,200 --> 00:07:05,620
Fifteen students.

120
00:07:07,416 --> 00:07:10,364
Which score range has the fewest?

121
00:07:12,450 --> 00:07:17,054
Ninety to ninety-nine. Two students.

122
00:07:21,350 --> 00:07:27,562
Weekly TV time of 25 students. The bottom shows hours.

123
00:07:27,650 --> 00:07:29,302
One.

124
00:07:29,400 --> 00:07:32,780
One student watches one hour of TV.

125
00:07:32,866 --> 00:07:34,230
Two.

126
00:07:34,316 --> 00:07:37,768
One student watches two hours of TV.

127
00:07:37,866 --> 00:07:39,518
Three.

128
00:07:39,616 --> 00:07:41,268
Three.

129
00:07:41,366 --> 00:07:44,986
Two students watch three hours of TV.

130
00:07:45,083 --> 00:07:46,495
Four.

131
00:07:46,583 --> 00:07:47,995
Four.

132
00:07:48,083 --> 00:07:49,495
Four.

133
00:07:49,583 --> 00:07:53,107
Three students watch four hours of TV.

134
00:07:53,200 --> 00:07:54,852
Five.

135
00:07:54,950 --> 00:07:56,602
Five.

136
00:07:56,700 --> 00:07:58,352
Five.

137
00:07:58,450 --> 00:08:00,102
Five.

138
00:08:00,200 --> 00:08:03,532
Four students watch five hours of TV.

139
00:08:03,616 --> 00:08:05,268
Six.

140
00:08:05,366 --> 00:08:07,018
Six.

141
00:08:07,116 --> 00:08:10,592
Two students watch six hours of TV.

142
00:08:10,683 --> 00:08:12,335
Seven.

143
00:08:12,433 --> 00:08:14,085
Seven.

144
00:08:14,183 --> 00:08:17,707
Two students watch seven hours of TV.

145
00:08:17,800 --> 00:08:19,212
Eight.

146
00:08:19,300 --> 00:08:20,712
Eight.

147
00:08:20,800 --> 00:08:24,180
Two students watch eight hours of TV.

148
00:08:24,266 --> 00:08:25,750
Nine.

149
00:08:25,850 --> 00:08:29,350
One student watches nine hours of TV.

150
00:08:29,450 --> 00:08:30,838
Ten.

151
00:08:30,933 --> 00:08:32,321
Ten.

152
00:08:32,416 --> 00:08:35,820
Two students watch ten hours of TV.

153
00:08:35,916 --> 00:08:37,448
Twelve.

154
00:08:37,533 --> 00:08:41,033
One student watches twelve hours of TV.

155
00:08:42,133 --> 00:08:44,913
What is the range of watching time?

156
00:08:47,000 --> 00:08:49,684
From one to twelve hours.

157
00:08:53,950 --> 00:08:57,090
What is the most common watching time?

158
00:08:59,183 --> 00:09:03,427
Five hours. Four students.

159
00:09:05,216 --> 00:09:08,044
What is the longest watching time?

160
00:09:10,133 --> 00:09:12,145
Twelve hours.

161
00:09:13,983 --> 00:09:17,219
How many watch more than five hours?

162
00:09:19,316 --> 00:09:21,400
Ten students.

163
00:09:23,200 --> 00:09:26,796
What are the characteristics of this distribution?

164
00:09:28,883 --> 00:09:34,975
Most students watch about five hours. A few watch much longer.