Answer:
In the step-by-step explanation!
Step-by-step explanation:
Not sure if it is too late but here:
1.)

2.)

3.)

Hopes this help! Please give me Brainliest!
Answer:
0.9544
Step-by-step explanation:
P(-2 < Z < 2) means that Z has mean 0 and standard deviation 2.
P(−2 < Z < 2) = F(2) - F(-2)
Using the Z - table,
F(2) = 0.9772
and F(-2) = 0.0228
Thus,
P(−2 < Z < 2) = 0.9772 - 0.0228 = 0.9544
This means that data within two standard deviation is 95%.
There the same thing they both weigh the same thing hope it helps and have a great day!