Answer:
36
Step-by-step explanation:
543 divided by 15=36.2
rounded down to 36
Answer:
He could have asked the girls as well, and could have asked the entire class instead of just 10 students.
Step-by-step explanation:
By only asking 10 boys, he is not getting a complete representation of the whole class, as their are 30 students in the class.
Answer:
a. 0
b. Yes
c. The manufacturers claim is not plausible
d. 0.3446
e. A sample mean life time of 39.8hr is not unusually short.
f. The manufacturers claim us plausible
Step-by-step explanation:
Please see attachment
For this case we must compare the following expressions:

We convert the mixed number to a fraction:

So, we have to compare:
1.2 and 1.2
It is observed that the expressions are equal, so we have the sign of equality "=":

Answer:
