Answer:
Range:35
Mean:27.6
Step-by-step explanation:
Range is the highest number minus the smallest number 40-5=35
Mean is adding up all the numbers,then divide by how many numbers there are 414 divided by 15
If you’re looking for x it would be -4/3
The z-score for 36,000 is (36,000 - 40,000) / (15,000 / √25) = -1.333
The z-score for 42,000 is (42,000 - 40,000) / (15,000 / √25) = 0.6667
P(36,000 < x < 42,000) = P(-1.3333 < z < 0.6667)
P(z < 0.6667) - P(z < -1.3333)
0.7475 - 0.0913
0.6562