Answer:
Approximately 68% of daily phone calls will be in this interval.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
In this problem, we have that:
Mean = 57
Standard deviation = 7
What is the approximate percentage of daily phone calls numbering between 50 and 64
50 = 57 - 7
So 50 is one standard deviation below the mean
64 = 57 + 7
So 64 is one standard deviation above the mean
By the Empirical Rule, approximately 68% of daily phone calls will be in this interval.
Y - y₁ = m(x -x₁)
slope m = -0.8, from point (14.5, 12.8) , x₁ = 14.5, y₁ = 12.8
y - y₁ = m(x -x<span>₁)
</span>y - 12.8 = -0.8(x - 14.5<span>)
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<span>Option B </span>
The answer is only 5/8 slices of cake is left. Hoped this helped!
Answer:
Brainleist!
Step-by-step explanation:
10 marbles total
8 are either purple or orange
8/10 or 4/5 or 80% or 0.8
80 x 0.8 = 64
Answer:
Step-by-step explanation:
If ΔABC ~ ΔPQR
or
