2 years ago

Can someone please solve this problem for me. I'm kind of confused-This is probability too-

Mathematics

1 answer:

Andrej [43]2 years ago

5 0

Step-by-step explanation:

The probability of landing on the color gray ONCE

= 2/7

Since it is spun 35 times, the expected number of times that it lands on a gray will be

(2/7 × 35) = 10 times

The probability of landing on the color black ONCE

= 1/7

Since it is spun 105 times, the expected number of times that it lands on a black will be

(⅐ × 105) = 15 times

The formula is:

Expected value = (Number of spinning)×(probability of landing on a colour)

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Can someone please solve this problem for me. I'm kind of confused-This is probability too-​

Can someone please solve this problem for me. I'm kind of confused-This is probability too-