Question

Help me please!

game board has a
spinner with 10 equal-sized sections, of which
4 are green, 3 are blue, 2 are yellow, and 1 is
red. What is the sum of the probabilities of the
pointer landing in the green, blue, yellow, and
red sections? Explain.

Answer 1

• 1 or 100%

Explanation:

There are 4 colors and if the sum of the probabilities involves all those colors, then it equals to 1.

Calculation as below:

• P(g) = 4/10
• P(b) = 3/10
• P(y) = 2/10
• P(r) = 1/10

The sum is:

• 4/10 + 3/10 + 2/10 + 1/10 = 10/10 = 1