Answer:
Step-by-step explanation:
Compute the standard error of the proportion.
sqrt[pq/n] = sqrt[0.2*0.8/100] = 0.04
p = 20%, q = 1- 20%
What is the probability that the sample contains between 12 and 14 business majors?
P(12≤X≤14) = P(X≤14) - P(X≤12)
= binomcdf(100,0.2,14)-binomcdf(100,0.2,11) = 0.0804 - 0.0126 = 0.0679
2 divided by 1/3 equals 6
Answer:
x=39
y=129
Step-by-step explanation:
x=180-51-90
y=180-51
The length and width of the terrace are 15 feet and 6 feet respectively.
The area of the terrace is 90 ft²
The scale of the plan is 2 inches : 6 feet.
Therefore, 2inches represents 6 feet.
According to the drawing;
- length = 5 inches
- width = 2 inches
Therefore,
- length of the terrace = 5 × 6 / 2 = 30 / 2 = 15 feet
- width of the terrace = 2 × 6 / 2 = 12 / 2 = 6 feet
The area can be found as follows:
<h3>Area of a rectangle:</h3>
where
l = length
w = width
Therefore,
area = 15 × 6 = 90 feet²
learn more on scale here: brainly.com/question/147532
Answer:
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