Data and Statistics Review Iqr Mad

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

What is the mode?

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

What is the range?

Theo researched the cost of a well-pet exam from seven different veterinary clinics in his community. They quoted him the following prices: $65, $100, $78, $72, $70, $125, $100 What is the IQR?

Eva asked ten of her friends how many birthday cards they got for their most recent birthday. The responses were as follows: 3, 2, 1, 0, 3, 4, 2, 1, 0, 1

Find the mean

What do the box plots tell you about the growth of a typical plant species?

• B typically grows taller than A since the range for B is greater.

• B typically grows taller than A since the IQR for B is greater.

• A grows taller than B since the median for A is greater.

• A typically grows taller than B since the mean for A is greater.

What do the box plots tell you about the variability of the data?

• B has greater variability because its range and IQR are greater than A.

• B has greater variability because its median & mean are greater than A.

• A has greater variability because its range & IQR are greater than B.

• A has greater variability because its median and mean are greater than B.

Compare the measure of center for each of the data sets.

• 90 secDVD players cost less, on average, at Store B

• The range for Store B is greater than the range for store A

• Data for store B has a greater mean, but not greater median than Store A.

• DVD players cost less, on average, at Store A.

Compare the variability of the data for each store.

• The range & IQR are greater at store B as compared to store A.

• There is less variability in prices of DVD players at store A.

• The range & IQR are greater at store A as compared to store B.

• There is more variability in prices of DVD players at store B.

Data from a survey asking students about the number of siblings in their families are shown. Compare the mean data.

• Students in 6th grade have 5 more siblings

• Students in each grade have a similar number of siblings

• Students in 7th grade have fewer siblings

• There is no difference in the number of siblings by grade

Which of the following measures CANNOT be made from a box plot?

• Interquartile Range

• Mean

• Median

• Range