A two digit number is chosen at random. Find the probality that the number is a perfect square
2 answers:
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Answer:
0.03 is the probability that for the sample mean IQ score is greater than 103.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 100
Standard Deviation, σ = 16
Sample size, n = 100
We are given that the distribution of IQ score is a bell shaped distribution that is a normal distribution.
Formula:
Standard error due to sampling =
P( mean IQ score is greater than 103)
P(x > 103)
Calculation the value from standard normal z table, we have,
0.03 is the probability that for the sample mean IQ score is greater than 103.
Answer:
<h2>a. $8.83</h2><h2>b. $136.83</h2><h2>The second option will be the right answer.</h2>Step-by-step explanation:
a.
The total tax which is need to be paid is 6.9% of the listed price.
6.9% of 128 = = 8.832 ≅ 8.83
b.
The person, who is going to buy a pair of boots, needs to pay the listed price as well as the required tax.
The total cost of the pair of boots is = listed price + tax = $(128 + 8.83) = $136.83