Answer:
0.508
Step-by-step explanation:
Answer:
750
Step-by-step explanation:
10 times 5 times 15
Answer:
A score of 117 is needed, which Is not possible since the test is over 100.
Step-by-step explanation:
The other 3 scores are 85, 94,84 . Let's x be the 4th score he must score.
Therefore ( 85 + 94 + 84 + X)/4 =95
Then 263+X /4 =95
Cross mutiplying 4*95=263+X
Therefore X= 380-263
X= 117 which is not possible since the test score is over 100.
The answer is B., valid because people were chosen randomly
This would make it a valid survey
Hope this helps!
;3
