Answer:
All real numbers is the answer
Step-by-step explanation:
Option c would be correct
Answer:
The probability is 0.017429
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)/SD/√n
In this case;
x = 273
mean = 276
SD = √(variance) = √81 = 9
n = 40
Substituting these values into the z-score formula, we have that;
z = (273-276)/9/√40
z = -2.11
So we proceed to get the probability
the probability in this case is;
P( z < -2.11)
We can use the normal distribution table for this
Our answer will be
P( z < -2.11) = 0.017429
<span>10<span>(<span><span>122<span>(13)</span></span><span>(12)</span></span>)</span></span><span>=<span><span>10<span>(122)</span></span><span>(156)</span></span></span><span>=<span><span>(10)</span><span>(19032)</span></span></span><span>=<span>190320
Hope You understand
This is just basic multiplication.</span></span>
There is a app called photo mathyou should use it
