IB SEHS Topic 6

Front

What do error bars represent?

Back

The standard deviation

Front

In the scientific display of data what is the function of error bars?

Back

To show variation around the mean or mean values

Front

Which set of results shows the greatest variability? Options: A, B, D, C

Back

B

Front

What do error bars represent?

Back

Variability

Front

Based upon the following set of results for a sit and reach test, what is the mean result? Trial 1: 23 cm, Trial 2: 15 cm, Trial 3: 19 cm

Back

19 cm

Front

What is the mean flexibility score of an athlete from 6 cm, 7 cm and 11 cm?

Back

8 cm

Front

A hurdler performs three 100m trials as recorded below. What is the mean time achieved in seconds? Trial 1: 14.2 s, Trial 2: 14.4 s, Trial 3: 14.9 s

Back

14.5

Front

An athlete scores 25.7 cm, 24.5 cm, 23.3 cm, and 26.5 cm in a vertical jump test. What is the mean score?

Back

25 cm

Front

What percentage of data is normally distributed within +/- 2 standard deviations of the mean?

Back

95%

Front

How many standard deviations fall within 68% of values for normally distributed data?

Back

+/- 1