The starting salary for a computer programmer major has a mean of $39,269 and a standard deviation of $2550. The probability that a randomly selected computer programmer major received a starting salary less than $38,000 is

The probability is 0.6915

Step-by-step explanation:

Test statistic (z) = (starting salary - mean starting salary)/standard deviation

starting salary = $38,000

mean starting salary = $39,269

standard deviation = $2,550

z = (38,000 - 39,269)/2550 = -1269/2550 = -0.50

The cumulative area of the test statistic is the probability that the starting salary is less than $38,000. The cumulative area is 0.6915.

Therefore, the probability is 0.6915.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get