723LRIS WS#8 (Pink) Statistics End-of-Year Review

Median:

Mean:

Best Measure of Center

The value of x:

The length of the fifth plank:

MAD

MAD

MAD

The median is greater:

The IQR is 2.5

The data have greater variability:

More than 7 hours of homework a week:

The mean heart rate is 65

The dot plot is symmetric

The data have greater variability

More likely to have a heart rate of 70 bpm

How many MAD's separate the means? Round to two decimals.

How many MAD's separate the means? Round to two decimals.

How many MAD's separate the medians?

His friends on the wrestling team.

Every 25th student who enters the school in the morning.

Post a survey on the school website.

Randomly select students at lunch time.

Population

Sample

Biased or unbiased

Which sample is best?

About how many people in the town like lemon in their tea?

About how many prefer iPhone?

About how many like country music?