Answer: the standard deviation is 2.4
Step-by-step explanation:
The formula for standard deviation is expressed as
s = √npq
Where
p = probability of success
q = probability of failure
n = number of samples
From the information given,
The probability of success, p is given as 0.2. It means that the probability of failure, q will be 1 - p = 1 - 0.2 = 0.8
There were 35 attempts. This means that total number of samples, n is 35
The standard deviation becomes
√35×0.2×0.8 = √5.6 = 2.366
Approximately 2.4
Answer:
A = 180 customers.
Step-by-step explanation:
Let the number of customers that made additional purchases be A.
Given the following data;
Percentage = 72% = 72/100 = 0.72
Total number of customers = 250
To find the number of customers that made additional purchases;
A = 0.72 * 250
A = 180 customers.
Therefore, 180 customers made additional purchases on Wednesday.
Answer:
Why is 3 x 1/10 less than 3 x 10
Since is 3 x 1/10 = 3/10 and
3 × 10 = 30, and
30 > 3/10
Step-by-step explanation:
S = 1 + 3 + 5 + ... + 11 + 13 + 15
S = 15 + 13 + 11 + ... + 5 + 3 + 1
==> 2S = (1 + 15) + (3 + 13) + (5 + 11) + ... + (15 + 1)
There are 8 terms in the sum, so
2S = 8 * 16 = 128
S = 128/2 = 64
Volume= whl
W= 4 ft
H= 2ft
L= 5ft
Multiply all (40), then multiply by the three times it was full.
Answer: 120ft^3
