Unit 1 Lesson 10 and 11 Practice

Select all the distribution shapes for which it is most often appropriate to use the mean.

• Bell Shape

• Uniform

• Symmetrical

• Skewed

• Bimodal

For which distribution shape is it usually appropriate to use the median when summarizing the data?

• Bell Shape

• Uniform

• Symmetrical

• Skewed

• Bimodal

The number of writing instruments in some teachers' desks is displayed in the dot plot. Is the median greater than, less than, or equal to the mean?

• Greater Than

• Less Than

• Equal To

A student has these scores on their assignments. The teacher is considering dropping a lowest score. What effect does eliminating the lowest value, 0, from the data set have on the mean and median?

0, 40, 60, 70, 75, 80, 85, 95, 95, 100

• They both increase.

• They both decrease.

• They stay the same.

Which term best describes the shape of the distribution?

• Bell Shape

• Uniform

• Skewed

• Symmetrical

Is it Possible to find the mean (average)?

• Yes

• No

Is it Possible to find the median (number in the middle)?

• Yes

• No

Were any of the fish caught 12 inches long?

• Yes

• No

• Maybe

Were any of the fish caught 19 inches long?

• Yes

• No

• Maybe

Which student was better at estimating the mass of the objects?

• Clare

• Lin