Answer:
Step-by-step explanation:
Given that a popcorn company builds a machine to fill 1 kg bags of popcorn. They test the first hundred bags filled and find that the bags have an average weight of 1,040 grams with a standard deviation of 25 grams.
i.e. Sample mean = 1040 and
Sample std dev s = 25 gm
Sample size n = 100
Hence by central limit theorem we have the sample mean follows a normal distribution with mean =1040 and std dev = s = 25 gm

Normal curve would be with mean 1040 and std deviatin 25
b) P(X>1115)
= 1-0.9987
=0.0013
i.e. 0.13% would receive a bag that had a weight greater than 1115 grams
Answer: 53x^7
Step-by-step explanation:
Subtracting a negative is like adding.
Answer:
Step-by-step explanation:
Let her brother's age be x
Sarah is 2x + 4
Answer:

Step-by-step explanation:


As
(g/f)(x) = g(x) / f(x)




Therefore,
