Answer:
0.0545 = 5.45% probability that exactly seven are retired people.
Step-by-step explanation:
For each stock investor, there are only two possible outcomes. Either they are retired people, or they are not. Stock investors are independent. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
20% of all stock investors are retired people.
This means that
a. What is the probability that exactly seven are retired people?
0.0545 = 5.45% probability that exactly seven are retired people.
In your question where Ben uses a compass and straight edge to construct angle DEF equals to angle ABC as shown in the diagram. In my calculation the possible answer to the following questions is angle DEF is equals to angle ABC when JK is constructed equals to HI.
Answer:
y=x+1
Step-by-step explanation:
y+2=1(x+3)
y+2=x+3
y=x+3-2
y=x+1
Answer:
0.140625 gallons per
Step-by-step explanation:
By doing a quick search we discover that there are 1 fl oz is equal to 0.0078125 gallons. Therefore, in order to find out how fast the pipe was leaking in gallons, we simply multiply the rate of fl oz by the number of gallons for every fl oz like so...
18 fl oz * 0.0078125 gallons = 0.140625 gallons
Answer: $9.10
Step-by-step explanation:
You will turn 20% into a a decimal which would be .2 Then you will multiply the .2 by the $45.50 and you will get your answer. $9.10