Answer: answer is d
Step-by-step explanation: input in calculator or set both equal to y and then set them equal to each other
Answer:
a. 0.71
b. 0.9863
Step-by-step explanation:
a. From the histogram, the relative frequency of houses with a value less than 500,000 is 0.34 and 0.37
-#The probability can therefore be calculated as:

Hence, the probability of the house value being less than 500,000 is o.71
b.
-From the info provided, we calculate the mean=403 and the standard deviation is 278 The probability that the mean value of a sample of n=40 is less than 500000 can be calculated as below:

Hence, the probability that the mean value of 40 randomly selected houses is less than 500,000 is 0.9863
Answer:
79.3
Step-by-step explanation:
2,037,634= 100 percent
1,614,840=x
x=1,614,840×100÷2,037,634
x=79.25
Answer:
If x^2 = 1, then x = 1 is NOT true because x can also be -1.