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In your area 23% of firms are owned by women. You call local firms at random in order to sell them accounting software. You phone

In your area 23% of firms are owned by women. You call local firms at random in order to sell them accounting software. You phone 7 local businesses at random

a) What is the probability that 2 of the 7 are owned by women?

b) What is the probability that at least 2 of the 7 are owned by women?

c) What is the mean and standard deviation of the number of businesses owned bywomen?

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