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
Andre45 [30]
2 years ago
13

The weights of the fish in a certain lake are normally distributed with a mean of 20 lb and a standard deviation of 9. If 9 fish

are randomly selected, what is the probability that the mean weight will be between 17.6 and 23.6 lb
Mathematics
1 answer:
mr Goodwill [35]2 years ago
3 0

Step-by-step explanation:

mean of 20 lb and a standard deviation of 9. If 9 fish are randomly selected,

what is the probability that the mean weight will be between 17.6 and 23.6

Ib? Write your answer as a decimal rounded to 4 places

You might be interested in
Dr. Lawrence is the director of Counseling Services at her university. She is planning to conduct a survey of 100 students at th
Tanzania [10]

Answer:

The type of sampling method Dr. Lawrence going to use is Quota Sampling.

Step-by-step explanation:

In quota sampling participants are chosen nonrandomly so it is not a representative sampling method.  In this case Dr.Lawrence has a quota of 15% for first-time students and 85% for returning, so the survey she is conducting is non-random. The sampling method she should use is Quota Sampling.

4 0
3 years ago
Find the perimeter of a quadrilateral with vertices at C (-1, 2), D (-2, -1), E (2, -2), and F (1, 1). Round your answer to the
babymother [125]

Answer:

B 12.68

Step-by-step explanation:

you will need to find the distance between each segment-

so the length of DC, CF, FE, ED

d=\sqrt{(x_{2}-x_{1})  ^{2}+(y_{2}-y_{1})  ^{2}  }

DC:

D(-2,-1) C(-1,2)

d=\sqrt{(-1--2)^{2} +(2--1)^{2} } \\d=\sqrt{1^{2}+3^{2}  } \\d=\sqrt{10} =3.16

CF:

C(-1,2) F(1,1)

d=\sqrt{(1--1)^{2} +(1-2)^{2} } \\d=\sqrt{2^{2}+-1^{2}  } \\d=\sqrt{4+1} \\d=\sqrt{x} 5=2.24

FE

F(1,1) E(2,-2)

d=\sqrt{(2-1)^{2} +(-2-1)^{2} } \\d=\sqrt{1^{2} +(-3)^{2} } \\d=\sqrt{1+9} \\d=\sqrt{10}= 3.16

ED

E(2,-2) D(-2,-1)

d=\sqrt{(-2-2)^{2} +(-1--2)^{2} } \\d=\sqrt{(-4)^{2}+1^{2}  } \\d=\sqrt{16+1} \\d=\sqrt{17}= 4.12\\

3.16+2.24+3.16+4.12= 12.68

4 0
3 years ago
Help please ASAP<br> thanks!
ludmilkaskok [199]
A. 55%
because you have to add 21 and 45 then you divide the answer -66- by how much 2 hours is in minutes. The you get 0.55, so it equals 55% 
7 0
3 years ago
Read 2 more answers
If there are 16 boys and 32 girls in a room, fill out all of the possible ratios of boys to girls that could be made. They alrea
Rzqust [24]
All of possible ratios of boys to girls that could be made is 8:16; 4:8; 2:4; 1:2
Hope it helps, Brainliest if it <3
8 0
2 years ago
(b) Employers at a firm are worried about the effect of March Madness, a basketball championship held each spring in the US, on
Brrunno [24]

Answer:

I need a question in order to answer not just a answer choice

Step-by-step explanation:

sorry

8 0
3 years ago
Other questions:
  • What is the experimental probability that at least one of the coins landed on heads? Express the probability as a decimal.
    14·2 answers
  • Help me answer 49, ignore number 50 please.
    7·2 answers
  • Thanks!! Can you please prove your answer! :) Thanks a lot
    9·1 answer
  • What is 6 minus 3 5/6?
    6·2 answers
  • Subtract 4x +5 from 2x-3​
    11·2 answers
  • Leslie weighs her marbles in a jar and the scale read 474 grams the empty jar weighs 439 grams each mar able weighs 5 grams how
    9·1 answer
  • Evaluate the expression when a = 4, b = 2, and c = 8<br><br> bc
    5·2 answers
  • Can someone help me with this
    7·1 answer
  • Plot the set of points and identify the shape. Then find the perimeter of the polygon.
    15·1 answer
  • PLZ HELP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!