Answer: If X = 5, z=<u>-3</u>
If X = 37, z= <u>3.4</u>
Step-by-step explanation:
We know that the formula to find the z-score for any random variable x is given by :-
, where 
= Population mean
= Population standard deviation.
As per given , we have
Then , the z-score for x =5
i.e. If X = 5, z=<u>-3</u>
When x =37,then 
i.e. If X = 37, z= <u>3.4</u>
V + 6 < 7
subtract 6 from both sides:-
V < 7 - 6
V < 1
The second one because the denominator is smaller meaning the second term is smaller and the first is bigger 2/3 > 2/4
<span>Find which is a better package between the 2
10 pack of 2.1 ounce bar = costs 15.37
dollars
=> 2.1 x 20 = 21 there are a total of 21 ounce of bar
=> 21 / 15.37
=> 1.366 dollars / ounce
12 pack of 1.4 ounce bars = costs 15.35
=> 1.4 x 12 = 16.8, there are 1a total of 6.8 ounces of bar
=> 16.8 / 15.35
=> 1.094 dollars / ounce
Thus the second choice is the better package between the two. The 12 pack of
1.4 ounce bars.</span>
Step-by-step explanation:
