Marissa is drawing coins from a bag that contains 5 pennies, 4 nickels, 5 m
2 answers:
Answer:
Step-by-step explanation:
Total no of coins in the bag
a) the probability that she will draw a nickel=no of nickels/total coins
=
If one penny, two dimes and one quarter added then we have total coins new as =
the
new probability that Marissa will draw a nickel= new nickel coins/new total
=
IN the first situation there is more likely as probability is more.
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Answer:
For the sampling distribution,
a) Mean = μₓ = 55.0 students.
b) Standard Deviation = 1.8 students.
Step-by-step explanation:
The complete Question is attached to this solution.
The Central limit theorem explains that for the sampling distribution, the mean is approximately equal to the population mean and the standard deviation of the sampling distribution is related to the population standard deviation through
σₓ = (σ/√n)
where σ = population standard deviation = 4
n = sample size = 5
Mean = population mean
μₓ = μ = 55 students.
Standard deviation
σₓ = (σ/√n) = (4/√5) = 1.789 students = 1.8 students to 1 d.p
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