Answer:
The stock is worth 765.65 today.
Step-by-step explanation:
=765.65
Valerie drives to and from work 5 days a week. the distance from her home to work is 6 miles. over the course of 5 days, her car
1 answer:
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Answer:
a) Standard Deviation = 2.74
b) Significantly Low = values below 24.52 (or equal)
Significantly High = values above 35.48 (or equal)
Step-by-step explanation:
This is binomial probability distribution problem.
Where n = 40 [groups of 40, total trials]
p = 0.75 [probability of success]
a)
The formula for standard deviation is:
We know n = 40 and p = 0.75, so the standard deviation is:
b)
the range rule of thumb tells us that usual range of values is within 2 standard deviation of the mean. First let's calculate mean.
We know,
Mean = n * p = 40 * 0.75 = 30
So
Mean - 2* Standard Deviation = 30 - 2(2.74) = 24.52
and
Mean + 2* Standard Deviation = 30 + 2(2.74) = 35.48
Significantly Low = values below 24.52 (or equal)
Significantly High = values above 35.48 (or equal)
Answer:
+
√54+√150
=√2×3×3×3+√2×5×5×3
=3√6+5√6
=8√6
=8×2. 44
=19. 59