<em><u>ANSWER</u></em>
= $26
<em><u>EXPLANATION</u></em>
Since probably they all watched the same movie bought online so therefore they only used $19.
<em><u>NUMBER </u></em><em><u>OF </u></em><em><u>PEOPLE</u></em><em><u> </u></em><em><u> </u></em><em><u>IN </u></em><em><u>ELLIE'S</u></em><em><u> </u></em><em><u>FAMILY</u></em>
Parents i.e (mum and dad) = 2
Ellie (herself) = 1
Two sisters = 2
Therefore (2+2+1) = 5
<em><u>TOTAL </u></em><em><u>MONEY</u></em><em><u> </u></em><em><u>SPENT </u></em><em><u>ON </u></em><em><u>WAYCHING </u></em><em><u>A </u></em><em><u>MOVIE </u></em><em><u>FROM </u></em><em><u>THE </u></em><em><u>THEATRE</u></em>
= 5×$9
= $45
<em><u>MONEY </u></em><em><u>SAVED</u></em>
= $45 - $19
= $26
The quiz grades of a math class are given. 83, 76, 68, 97, 68, 80, 89, 74, 75, 81, 91, 90 The grades are normally distributed wi
Yuki888 [10]
Answer:
the answer is c) 1.08
Step-by-step explanation:
Step1:
Formula for calculating z-score is;
Z= (x-mean)/standard deviation
where x is the value for which z-score is required
Step 2:
As asked in the question z-score for highest grade is required which is 91;
z= (91-81)/9.3
z=10/9.3
z=1.075
which is approximately;
z=1.08
The value of k is 6 because I just need answers some more answers