Answer:
60%
Step-by-step explanation:
Please take a look at the picture attached
Answer: <em>the answer would be</em> <em>C</em>, 12.
Answer:
Step-by-step explanation:
The complete question is in the attachment.
We want to find an expression that is equivalent to:
Note that:
This implies that:
Or
This simplifies to:
Answer:
B
Step-by-step explanation:
We have that for a normal distribution, the value of z can be calculated using the following formula:
z = (x - m) / sd
where x is the value to evaluate, m the mean and sd the standard deviation, we have those values x = 15.3, m = 17.4 and sd = 3.2
if we replace we have:
z = (15.3 - 17.4) /3.2
z = -0.65625
if we round to 2 decimal places, it would be -0.66, that is, the answer is B.