Answer:
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Step-by-step explanation:
Answer:
We know that n = 50 and p =0.78.
We need to check the conditions in order to use the normal approximation.
Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

With the following parameters:


Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
We know that n = 50 and p =0.78.
We need to check the conditions in order to use the normal approximation.
Since both conditions are satisfied we can use the normal approximation and the distribution for the proportion is given by:

With the following parameters:


Answer:
Step-by-step explanation:
it says Jane is 115 years older than Marian it means that Jane is 253 years old
Answer:
area is a half x l x h
Step-by-step explanation:
we cannot use the hypotenuse because it wouldn't bring the area
I hope this helps you
perimeter of square =4x
4x=equilateral triangle perimeter
4x=3.1
x=3/4