Answer:
35 diveded by 7=5 so 35 minus 5 = 30 so the shoes are 30.00
Step-by-step explanation:
Answer:
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Step-by-step explanation:
p = proportion of residents qualified for discounts = 0.70
Sample size = 20
If X is the no of residences selected for discounts then x is binomial with (20,0.7)
P(X>=12) = 0.8867
Since the values are equally likely and equally spaced, their mean is the middle one.
the mean is 1/5
The variance is the average of the square of the deviations from the mean.
σ² = (1/3)((-1/10)² + 0² + (1/10)²) = 2/300
the variance is 2/300