A group of 6 friends decides to rent a vacation house for a month. The monthly rent on the house is $2,130. Each friend pays an
2 answers:
Answer:
Each friend pay = $ 355.
Step-by-step explanation:
Given : A group of 6 friends decides to rent a vacation house for a month. The monthly rent on the house is $2,130.
To find : How much does each friend pay.
Solution : 6 friends decides to rent equal share of the cost = $2,130.
Rent for each friend =
each friend pay = $ 355.
Therefore, each friend pay = $ 355.
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Answer:
a. The sample size is approximately 97 adults
Step-by-step explanation:
The given parameters are;
The number of adults surveyed, n = 174
The lowest value of the pulse rate = 39 bpm
The highest value of the pulse rate = 111 bpm
The level of confidence used for determining the sample size = 90%
The given sample mean = 3 pm of the population mean
a. The range rule of thumb states that the standard deviation is approximately one quarter (1/4) of the range
The range = 111 bpm - 39 bpm = 72 bpm
Therefore, the standard deviation, σ = 72 bpm/4 = 18 bpm
The sample size, 'N', is given as follows;
Where;
N = The sample size
z = The confidence level, 90% (z-score at 90% = 1.645)
p·q = σ² = 18² = 324
e² = 3² = 9
Therefore the appropriate sample size, N ≈ 97 adults.