Answer:
7
Step-by-step explanation:
20 - 12 = 8
15 - b = 8
-b = 8 - 15
b = 7 ( -ve signs will become +ve)
The player took a total of 70 shots and missed about 28 shots.
<h3>
Percentage</h3>
Percentage is used in expressing a fraction number or decimal in fraction of 100. It is expressed using the '%' sign.
Given a total shot of 100, since the player took 70% of the shot, hence:
Total shot taken by the player = 70% of 100 = 0.7 * 100 = 70 shots.
Total shot shot missed = (100% - 60%) of 70 = 40% of 70 = 0.4 * 70 = 28 shots.
The player took a total of 70 shots and missed about 28 shots.
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Answer:


Step-by-step explanation:
<u>Sample Space</u>
The sample space of a random experience is a set of all the possible outcomes of that experience. It's usually denoted by the letter
.
We have a number cube with all faces labeled from 1 to 6. That cube is to be rolled once. The visible number shown in the cube is recorded as the outcome. The possible outcomes are listed as the sample space below:

Now we are required to give the outcomes for the event of rolling a number less than 5. Let's call A to such event. The set of possible outcomes for A has all the numbers from 1 to 4 as follows

Answer:
0.5488 = 54.88% probability that there are no defects in the completed highway.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval.
The portion of highway that your city is building is 30 miles long.
The mean is one defect per 50 miles. Since the highway is 30 miles, we have that:

What is the probability that there are no (0) defects in the completed highway?
This is P(X = 0). So


0.5488 = 54.88% probability that there are no defects in the completed highway.
Assuming that the triangle is isoceles, the answer should be 30.