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SSSSS [86.1K]
2 years ago
12

For a standard normal distribution,P(z < c) = 0. 3387Find c rounded to two decimal places

Mathematics
1 answer:
GalinKa [24]2 years ago
6 0

The value of c for a standard normal distribution, P(z < c) = 0. 3387 is -0.41.

<h3>What is z score?</h3>

Z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (x - μ)/σ

Where x is the raw score, μ is the mean and σ is the standard deviation.

Given that P(z < c) = 0. 3387; hence:

From the normal distribution table, c = -0.41

The value of c for a standard normal distribution, P(z < c) = 0. 3387 is -0.41.

Find out more on z score at: brainly.com/question/25638875

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Which equation reprints the slope intercept form of the line below ? Y- intercept = (0,2) slope = -3/7
Ann [662]

Answer:

y = -\frac{3}{7} x + 2

Step-by-step explanation:

The y-intercept of the line is (0,2)

The slope of the line is  -\frac{3}{7}

We derive the slope of a line by dividing the change in y by the change in x

So,

\frac{y - 2}{x - 0} =  -\frac{3}{7}

y - 2 =  -\frac{3}{7} x

The equation of the line therefore is;

y =  -\frac{3}{7} x + 2

5 0
3 years ago
Your friend simplifies the following problem. Describe what error was made. No credit for just the correct final answer, we are
kenny6666 [7]

The error was made when he added the number in the radical expression in the computation, despite the fact that the numbers do not have the same base.

<h3>What are the radical expressions?</h3>

Any expression that contains a radical symbol is considered a radical expression. To find the square roots, cubic roots, and higher, radical symbols are used. For example, √7, √6, and √11 are in the radial form.

The expression is given in the question following:

4√5 + 7√3

11√8

The error was made in that he add the number in the radical expression in the calculation while the terms are not the same base.

Learn more about radical expressions here:

brainly.com/question/3796764

#SPJ1

5 0
1 year ago
I WANT SOLUTION AND EXPLANATION ANSWER IS GIVEN AT LAST!!!
Pavel [41]
<h3><u>Question:</u></h3>

The present ages of Ram and Rehman are in the ratio 8:9. After 5 years, the ratio of their ages will be 9:10. Find their present ages.

<h3><u>Statement:</u></h3>

The present ages of Ram and Rehman are in the ratio 8:9. After 5 years, the ratio of their ages will be 9:10.

<h3><u>Solution:</u></h3>
  • Let the present age of Ram and Rehman be 8x years and 9x years respectively.
  • After 5 years, their ages will be 9x years and 10 years respectively.
  • Therefore, by the problem

\frac{8x + 5}{9x + 5}  =  \frac{9}{10}  \\  =  > 10(8x + 5) = 9(9x + 5) \\  =  > 80x + 50 = 81x + 45 \\  =  > 50 - 45 = 81x - 80x \\  =  > x = 5

  • So, the present age of Ram = 8x years = (8×5) years = 40 years
  • The present age of Rehman = 9x years = (9×5) years = 45 years
<h3><u>Answer:</u></h3>

The present ages of Ram and Rehman are 40 years and 45 years respectively.

3 0
2 years ago
1. x+3y=6<br> y = 8x + 9
Allushta [10]

Answer:

x=-(21)/(25),y=(57)/(25)

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP ME THIS IS DUE IN TWO HOURS! :(
ikadub [295]

Answer:224 squared

Step-by-step explanation:

H

7 0
3 years ago
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