Data Analysis

Andrew has a box filled with baseball caps. He has 3 blue, green, and 2 black caps. He randomly choose one cap from the box for himself. Then he picks a second cap out of the box, also randomly, for his little brother to wear.

What is the probability that Andrew picked a black cap followed by a green cap?

• 1/18

• 1/15

• 1/9

• 8/15

Coach sanders measured the heights, in meters, of all the members of the girls basketball team. The results are shown in the table.

What is the interquartile range of these data?

• 0.1 m

• 0.3 m

• 1.6 m

• 1.7 m

The circle graph shows Kawika's monthly budget. He makes $1, 800 per month.

About what percent of his monthly income does he spend on rent and utilities?

• 7%

• 34%

• 41%

• 51%

The dose size for a particular sheep medication versus the sheep's mass is shown in the scatter plot.

What dose should be given to a sheep whose mass is 100 kg?

• 16 ml

• 17 ml

• 19 ml

• 20 ml

Arwen rolls a number cube ( with sides labeled 1 through 6) twice. What is the probability that the first or second result is the number 5?

• 1/36

• 1/6

• 11/36

• 1/3

Mr. Kim recorded the test scores for his math class, and he displayed the data in the box and whisker plot shown.

About what percent of the students in Mr. Kim's class received a score greater than or equal to 90 on the test?

• 10%

• 15%

• 25%

• 45%

The line graph shows the lengths of male and female babies compared to their ages.

Based on the graph, what is the difference in the lengths of boys and girls at 2 months of age?

• 0.5 in

• 1.0 in

• 1.5 in

• 2.0 in

The average reading rate for several grade levels i shown in the scatter plot.

Using a line of best fit for the data, at what rate would you expect a twelfth grader to read?

• 230 words per minute

• 235 words per minute

• 240 words per minute

• 245 words per minute

A contestant on a game show has three boxes and three curtains to choose from in order to win a car. First, the contestant must choose a box. There is a key under each box, and one of the three keys is for the car. Then the contestant has to choose one of the three curtains. Behind one of them is the car. What is the probability that the contestant will choose the car and its key.

• 1/9

• 1/6

• 1/3

• 2/3

Shown is a scatter plot of the number of calories in different types of fruits versus grams of sugar.

Which statement best describes the general trend of these data?

• As the number of calories increases, the number of grams of sugar decreases.

• As the number of calories increase, the number of grams of sugar increases.

• The grams of sugar remain constant as the number of calories increases.

• There is no correlation between the number of calories and the grams of sugar.