A spinner has 10 equal-sized sections. Two of the sections are red.
a. What is the probability that the spinner will land on red?
b. Use words to describe the probability.

a. Probability of landing on red =

b. See Explanation

Step-by-step explanation:

Given

A Spinner

Number of section = 10 (equal sized)

Number of red section = 2

Required

- Probability of landing on red

- Describe the probability in words

Calculating the probability of landing on red

The formula used in calculating probability is as follows

Probability = Number of required outcomes / Number of possible outcomes

In this case, the number of required outcomes is the number of red section.

Hence, number of required outcomes  = 2

And the number of possible outcomes is the total section of the spinner

Hence, Number of possible outcomes = 10

By Substitution

Probability of landing on red =

Probability of landing on red =

Describe the probability in words

From (a) above, we have that the probability of the spinner landing on color red is

This means that, for every five times, you spin the spinner, it's likely that one of the outcomes will be red.

8

step-by-step explanation:

this is a subtraction problem.

10 - 2 = 8