Data analysis

Elliot says almost everyone arrived at the party after 10:00 P.M., but Nancy thinks most people came earlier. When did a majority of the people arrive? 

• 7:00-7:59 P.M.
• 8:00–8:59 P.M.
• 9:00–9:59 P.M.
• 10:00–10:59 P.M. 

The leaves in this stem-and-leaf plot represent which place value?

• ones
• tens
• hundreds
• thousands

Rank the data from least to greatest.

• 55, 55, 55, 55, 55, 60, 60, 60, 60, 60, 70, 70, 75, 75, 85

• 55, 55, 55, 55, 55, 55, 60, 60, 60, 70, 70, 70, 75, 75, 85

• 55, 55, 55, 55, 55, 60, 60, 60, 60, 70, 70, 70, 75, 75, 85

• 55, 55, 55, 55, 55, 60, 60, 60, 60, 70, 70, 75, 75, 75, 85

Which of the following data sets would have the largest standard deviation?

• {3, 3, 4, 5, 5}

• {72, 73, 74, 75, 76}

• {2, 8,18, 26, 35}

• {8,10,12,14,16}

Thomas is trying to determine the average height of high school male students. Because he is on the basketball team, he uses the heights of the 14 players on the team, which are given below in inches.

69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82 Calculate the mean

• 74.6

• 1044

• 6.5

• 74.1

Thomas is trying to determine the average height of high school male students. Because he is on the basketball team, he uses the heights of the 14 players on the team, which are given below in inches.

69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82

Calculate the median

• 74.5

• 6.5

• 74.6

• 74, 76

Thomas is trying to determine the average height of high school male students. Because he is on the basketball team, he uses the heights of the 14 players on the team, which are given below in inches.

69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82

Calculate the mode

• 74, 76

• 74.5

• 74.6

• 6.5

Thomas is trying to determine the average height of high school male students. Because he is on the basketball team, he uses the heights of the 14 players on the team, which are given below in inches.

69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82 Calculate the range

• 13

• 6.5

• 74.6

• 74, 76

Thomas is trying to determine the average height of high school male students. Because he is on the basketball team, he uses the heights of the 14 players on the team, which are given below in inches.

69, 70, 72, 72, 74, 74, 74, 75, 76, 76, 76, 77, 77, 82 Calculate the standard deviation

• 3.2

• 3.3

• 14

• 74.5

The histogram shown summarizes the responses of 100 people when asked, “What was the price of the last meal you purchased?” Based on the histogram, which of the following could be the interquartile range of the prices?

• 40

• 21

• 10

• 5

• 3