Standard Scores

The IQR is to the median what the ________-_________ is to the mean.

This is an example of which type of skew?

This is an example of which type of skew?

This is an example of which type of skew?

68% of the data is located within how many standard deviations of the mean?

• 1

• 2

• 3

• 4

95% of the data is located within how many standard deviations of the mean?

• 1

• 2

• 3

• 4

99.7% of the data is located within how many standard deviations of the mean?

• 1

• 2

• 3

• 4

If the mean height is 180cm and the standard deviation is 4. What percentage of the population would lie between 176cm and 184cm?

• 34%

• 68%

• 95%

• 50%

If the mean height is 180cm and the standard deviation is 4. What percentage of the population would lie between 176cm and 180cm?

• 34%

• 68%

• 95%

• 50%

The mean is 45. The standard deviation is 5.

Approximately, what percentage of the data lies between 40 and 50?