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To calculate for the standard deviation given the
probability, we use the formula:
s = sqrt (n p q)
where s is standard deviation, n is number of samples = 11,
p is probability of success = 0.7, q = 1 – p = 0.30
s = sqrt (11 * 0.7 * 0.3)
<span>s = 1.52</span>
The triangle height = 5√3 cm
So....the area =
(1/2) base x height = (1/2) (5) (5√3) = (25/2)√3
≈ 21.7 cm
Answer: the answer is 3/48
Answer:
-50 2/5.
Step-by-step explanation:
First subtract the whole numbers:
12 - 22 - 40
= -50.
Next the fractions:
1/5 - 2/5 - 1/5
= -2/5
So the answer is -50 2/5.
