Answer:
4/7
Step-by-step explanation:
9 - 1 = 8
8/14 = 4/7
The z-score of the person who scored 178 on the exam is fund as 2.8.
<h3>What is defined as the normally distribution?</h3>
- The proper term for just a probability bell curve is the normal distribution.
- The mean of a normal distribution is zero, as well as the standard deviation is one. It has a skew of 0 and a kurtosis of 3.
- However all symmetrical distributions are normal, not all normal distributions are symmetrical.
- Many naturally occurring phenomena resemble the normal distribution.
- However, most pricing distributions in finance are not perfectly normal.
For the given question,
Mean μ = 150
Standard deviation σ = 10
Observed value x = 178.
The z-score is calculated as;
z = (x - μ)/σ
z = (178 - 150)/10
z = 28/10
z = 2.8
Thus, the z-score of the person who scored 178 on the exam is fund as 2.8.
To know more about the normally distribution, here
brainly.com/question/23418254
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Answer:
Answers below
Step-by-step explanation:
a. The question is asking how many number of groups that contain of equal balls from both red and blue can be formed, which are none because one of the groups will have one more excess red ball. b. The facts that are given are that there are 27 red balls and 18 blue balls. c. Solve it by making an equation and statements with the facts given to make the most fit answer for this problem. d. The total number of balls he has is 45 consisting of 18 blue and 27 red. e. The largest and most equal amount of balls is 9 blue and 13 balls in one pile, 9 blue and 14 in the other. Hope this helps! (Sorry if I couldn't answer everything)
Answer:
y + (y-8) < 41
lee <24 in whole numbers
Step-by-step explanation:
lee =y
toby = lee -8
= y-8
sum of their ages < 41
lee + toby < 41
y + (y-8) < 41
combine like terms
2y-8 <41
add 8 to each side
2y < 49
divide by 2
y < 49/2
y < 24.5
y <24 in whole numbers
One of the easiest ways to do problem one is to factor it, which it already is you have p and (120-4p). This means that p = 0 and 120-4p = 0. If you algebraically solve for p, you will find two answers 0 and 30 tickets sold makes $0 in revenue. For number two we know that 120p-4p^2 is equal to the revenue. So to create an equation that solves for the number of tickets to make $600 we make the equation 120p-4p^2 = 600, but because we want to get rid of the 600 on the right, we subtract 600 from both sides to get 120p-4p^2-600
