All you have to do is put the numbers in where it asks:
3(6)(2) - -3 = 3(6)(2) + -3
= 33
Answer:
The standard deviation of the speeds of cars travelling on California freeway is 6.0088 miles per hour.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by

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 This p-value is the probability that the value of the measure is greater than X.
In this problem, we have that:
Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of 61 miles/hour. This means that
.
The highway patrol's policy is to issue tickets for cars with speeds exceeding 75 miles/hour. The records show that exactly 1% of the speeds exceed this limit. This means that the pvalue of Z when
is 0.99. This is 
So





The standard deviation of the speeds of cars travelling on California freeway is 6.0088 miles per hour.
Answer:
The answer is 114 which is the first answer which is A
Step-by-step explanation:
The rest 99, 87, and 25 just dont
Hope this helps you
Answer:
x = 7
Step-by-step explanation:






Hope this helps
Answer:
B.less cakes
Step-by-step explanation:
If she keeps making 20 cakes she will lose profit.
If she makes more she will lose profit.
She has to make less cakes to stop losing profits.
So the answer is B. Make less Cakes