1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kifflom [539]
2 years ago
9

Suppose a normal distribution has a mean of 62 and a standard deviation of

Mathematics
1 answer:
tankabanditka [31]2 years ago
6 0

Answer:

66.8% or 0.66772

Step-by-step explanation:

0.66772

Given that :

Mean (m) = 62

Standard deviation (s) = 4

probability that a data value is between 57 and 65

P(57 < x < 65)

Using the relation :

(x - m) / s

P(x < 57) :

(57 - 62) / 4 = - 1.25

P(Z < - 1.25) = 0.10565 ( Z probability calculator)

P(x < 65) :

(65 - 62) / 4 = 0.75

P(Z < 0.75) = 0.77337 (Z probability calculator)

P(Z < 0.75) - P(Z < - 1.25)

0.77337 - 0.10565 = 0.66772

You might be interested in
Median of 28, 30, 34, 35
Arturiano [62]
You first put them all in order from least to greatest. Now, since 30 and 34 seem to be in the middle, write the number in between them: 30, 31, 32, 33, 34.

And you get your answer as 32. Hope this helped ;)
5 0
3 years ago
On friday,3/10 of the students at a school were wearing white shirts and 5/12 of the students were wearing blue shirts.What frac
inessss [21]
30 white I think I hope you get it right
7 0
3 years ago
Events A and B have probabilities such that P(A) = 0.3, P(B) = 0.25, P(M ∪ N) = 0.425, and P(M ∩ N) = 0.075. Are events A and ev
nekit [7.7K]

Answer:

(C)Yes, because P(M) ∙ P(N) = P(M ∩ N)

Step-by-step explanation:

Two events A and B are independent if P(A)P(B)=P(A ∩ B)

Given events A and B such that:

P(A) = 0.3, P(B) = 0.25, P(A ∪ B) = 0.425, and P(A ∩ B) = 0.075

  • P(A)P(B)=0.3 X 0.25 =0.075
  • P(A ∩ B) = 0.075

Since the two expression above gives the same answer, they are independent.

<u>The correct option is C.</u>

7 0
3 years ago
Draw 2 supplementary angles. One angle is x-15 degrees and one is 2x degrees. What is the value of x in degrees?
Bond [772]

Answer:

Step-by-step explanation:

Since they are supplementary, it means the addition of both angles gives 180 degree.

x - 15 + 2x = 180\\3x = 180 + 15\\3x = 195\\x = \frac{195}{3} \\x = 65

4 0
3 years ago
5 - Numbers from 1 to 50 are written on a piece of paper and dropped into a box. A paper is chosen at random
zlopas [31]

Answer:

1 out of a 50% chance

Step-by-step explanation:

hope it helps

7 0
2 years ago
Other questions:
  • How do I do this problem? (3/8)^2÷(3/7+3/14
    8·1 answer
  • 3/4 Divided by 3/4 equals what
    12·2 answers
  • Square bionomial of (2x+3)^2
    13·1 answer
  • What is the mean temperature
    13·2 answers
  • A bacteria culture begins with 13 bacteria that triple in amount at the end of every hour. How many bacteria exist in the cultur
    9·1 answer
  • ILL GIVE BRAINLIEST I PROMISE HELP ME GOD HELP PLEASE PLEASE I BEG OF YOU PLEASE PELASE PLEASE OH MY GOD
    12·1 answer
  • Please help and ill mark brainliest!!! A 2-column table with 4 rows. Column 1 is labeled Store with entries A, B, C, D. Column 2
    6·2 answers
  • Consider having a personal loan that spans 50 years. The loan was only taken out for $1000, but the interest rate was a higher f
    13·2 answers
  • For a craft project, two equilateral triangles are taped together to create a quadrilateral
    6·1 answer
  • An auto mechanic charges (c) an initial fee of 50$ and then 40$ per hour. The graph of this model would be
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!