Answer:
The probability that a randomly selected compact car gets at least 40 miles per gallon is about 1.74%
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
The probability that a randomly selected compact car gets at least 40 miles per gallon is about?
This is 1 subtracted by the pvalue of Z when X = 40. So
has a pvalue of 0.9826
1 - 0.9826 = 0.0174
The probability that a randomly selected compact car gets at least 40 miles per gallon is about 1.74%
Hey, Jaya21!
Great question:)
16*53=848
Remainder:5
I hope this helps=)
9514 1404 393
Answer:
7-x = 3(x -3)
Step-by-step explanation:
The brother's age is 10-x. Three years ago, their ages were (x-3) and (7-x). At that time, the relation between their ages was ...
7-x = 3(x -3)
_____
The solution is ...
16 = 4x . . . . add 9+x
x = 4 . . . . . . divide by 4
James is 4; his brother is 6.
Answer:
first one ( x ≥ -12)
Step-by-step explanation:
when you divide by -12 for both sides, the inequality reverses as the value is negative.