Joe paid x dollars for a pair of jeans. Dennis bought the same pair of jeans for half as much as Joe. If they paid a total of $6
2 answers:
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Answer:
78.81%
Step-by-step explanation:
We are given;
Population mean; μ = 149
Sample mean; x¯ = 147.8
Sample size; n = 88
standard deviation; σ = 14
Z-score is;
z = (x¯ - μ)/(σ/√n)
Plugging in the relevant values;
z = (147.8 - 149)/(14/√88)
z = -0.804
From z-distribution table attached, we have; p = 0.21186
P(X > 147.8) = 1 - 0.21186 = 0.78814
In percentage gives; p = 78.81%
Answer:
a. Probability = 0.15
b. Probability = 0.3
Step-by-step explanation:
Given
Solving (a): Probability of being somewhere else
This is calculated by subtracting the sum of given probabilities from 1.
Solving (b): Probability of being in bedroom or kitchen
This is calculated as: