Question

What is the probability of a person who plays equation IQ being in grade 6? Enter the answer as a percentage, round to the nearest tenth place.

Answer 1

28.3%

Step-by-step explanation

The total number of people that play Equation IQ is 300 - we can know this by adding either the more right column or the lowest row of the table.

From those people, 85 are in grade 6. The probability of a person that plays Equation IQ being in grade 6 is:

`P(\text{grade 6})=\frac{\#\text{ people in grade 6}}{\#\text{ total number of players}}=(85)/(300)\approx0.2833\ldots`

To write it as a percentage we just have to multiply it by 100:

`0.283*100=28.3\text{ \%}`