Answer:
= 4/15
Step-by-step explanation:
=4 . 2/5 /6
= 4/15
Answer:
The probability that X is between 1.48 and 15.56 is 
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions 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:

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.
X is a normally distributed random variable with a mean of 8 and a standard deviation of 4.
This means that 
The probability that X is between 1.48 and 15.56
This is the pvalue of Z when X = 15.56 subtracted by the pvalue of Z when X = 1.48. So
X = 15.56



has a pvalue of 0.9706
X = 1.48



has a pvalue of 0.0516
0.9706 - 0.0516 = 0.919
Write out the probability notation for this question.

The probability that X is between 1.48 and 15.56 is 
I think it’s 32
Hope that helped XD
Answer:4 feet and 3 inches
Step-by-step explanation:
To answer this question you will set up a system of equations to represent each scenario. Solve for one variable and substitute that in to the other equation to find the missing value. This example will have you solving for p, the price of popcorn.
4p + 3s = 13.50 and 2p + 5s = 12
2p + 5s = 12
-2p -2p
5s = 12 - 2p
5 5
s = 2.4 - 0.4p
4p + 3s = 13.50
4p + 3(2.4 - 0.4p) = 13.50
4p +7.2 - 1.2p = 13.5
2.8p +7.2 = 13.5
-7.2 -7.2
<u>2.8p</u> = <u>6.3</u>
2.8 2.8
p = 2.25
The price of popcorn is 2.25 and the soda is (2.4 - 0.4 x 2.25) $1.50.
5 popcorn and 2 sodas will cost (2.25 x 5 + 1.50 x 2) = $14.25.