The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. x 0 1 2 3 4 5 P(x) 0.10 0.25 0.30 0.20 0.10 0.05

Find P(at least 3)

P(at least 3) = 0.35            

Step-by-step explanation:

We are given the following probability distribution in the question:

x:            0      1        2        3         4        5

P(x):   0.10   0.25   0.30   0.20   0.10   0.05

where x is the number of customers in line at a supermarket

Verification for a discrete probability distribution:

Hence, it is a discrete probability distribution.

We have to evaluate P(at least 3).

Thus,

P(at least 3) = 0.35

0.35 is the probability that there are atleast 3 customers in line at a supermarket.

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

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