The answer is 32.5%
and if you need it in decimal form, it would be,

Answer:
B
Step-by-step explanation:
The mean of the track athletes is given by

The mean of the gymnasts is given by

The difference in mean is given by

(rounded to one decimal place)
Q7
7/25
(Decimal: 0.28)
Step-by-step explanation:
Here's the little secret you can use to instantly transform any fraction to a decimal: Simply divide the numerator by the denominator:
= 7/25
= 7 ÷ 25
= 0.28