The answer would be, A) +$2 because he spend $12 but earned $14 so when you subtract 14 and 12 you get $2, which would be his profit
Answer:
a

b

Step-by-step explanation:
From the question we are told that
The data is 87 91 86 82 72 91 60 77 80 79 83 96
Generally the point estimate for the mean is mathematically represented as

=> 
=>
Generally the point estimate for the standard deviation is mathematically represented as

=> 
=> 
Answer: 5; PO
6; PM
7; MNO
8; QN
9; OQ
10; PQO
Step-by-step explanation:
Answer: it is p
Step-by-step explanation: