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
sergiy2304 [10]
3 years ago
13

A study is run to estimate the mean total cholesterol level in children 2 to 6 years of age. A sample of 9 participants is selec

ted and their total cholesterol levels are measured as follows. 180 220 240 196 175 183 195 140 200 What is the sample mean?A)196B)200C)192.11D)180
Mathematics
1 answer:
barxatty [35]3 years ago
8 0

Answer:

C) 192.11

Step-by-step explanation:

To find the mean of any group of numbers, you simply add up all the numbers and then divide by how many numbers there are.

Using a calculator or a pencil, add the following:

180 + 220 + 240 + 196 + 175 + 183 + 195 + 140 + 200

= 1,729

The last step is to divide 1,729 by 9:

1,729 ÷ 9 = 192.11

You might be interested in
What is the approximate area of the circle?
Sophie [7]

Answer:

B

Step-by-step explanation:

because it is

5 0
2 years ago
Read 2 more answers
Steve makes a banner with an area of 8 square feet. On a grid, draw all possible rectangles with an area of 8 square feet and si
Maksim231197 [3]

Answer:

The correct answers are with side lengths 1 feet and 8 feet, the perimeter is 18 feet; and with side lengths 2 feet and 4 feet, the perimeter is 12 feet.

Step-by-step explanation:

The area of a rectangular banner is 8 square feet.

The side lengths of this rectangular banner are whole numbers.

Thus the possible pairs of side lengths that would give 8 when multiplied with each other are (1 , 8) ; (2 , 4).

So the possible side lengths are 1 feet and 8 feet or 2 feet and 4 feet.

The perimeter when the side lengths are 1 feet and 8 feet are 18 feet.

The perimeter when the side lengths are 2 feet and 4 feet are 12 feet.

8 0
2 years ago
Read 2 more answers
Please help emergency
Firdavs [7]

Step-by-step explanation:

This is a probability related problem.

  Probability is the likelihood of an event to occur;

    Pr = \frac{number of possible outcomes}{Total sample space}

The sample space here is from 1 to 25 which is 25

A.

Pr of a card marked 8; we have just 1 possible outcome;

       Pr(8)  = \frac{1}{25}

B.

Pr  of drawing a card that is a multiple of 5;

    Multiples of 5 = 5, 10, 15 and 25

     Pr (multiples of 5) = \frac{4}{25}

C.

Pr of drawing a card with odd numbers:

          Number of odd numbers between 1 and 25  = 13

     Pr(odd numbers) = \frac{13}{25}

D.

Pr of drawing a number with square number on it;

        Square numbers between 1 and 25  = 1, 4, 9, 16 and 25

  Pr(square numbers) = \frac{5}{25}   = \frac{1}{5}

3 0
2 years ago
Will bought 3 college textbooks. One cost $32, one cost $45, and one cost $39. What is the average price of his books? Choose th
Snowcat [4.5K]
D. Since you bought 3 text books you will have to multiply and then add the rest of the numbers
3 0
3 years ago
Read 2 more answers
X * X *X*X*X*X*XX hejfsghjjhffvbjjk
Mumz [18]
WHAT DOES THIS MEAN?
5 0
3 years ago
Other questions:
  • What is the answer to 4-1 x 8/4
    6·2 answers
  • 50/6 = x/12<br>What is the value of x?
    5·1 answer
  • An old clock started to fall behind by one minute each day. It was too fragile to fix, but too beloved to stop. How slow was the
    5·1 answer
  • Whats 20 divided by one fourth
    11·1 answer
  • 3 3/8 - 1 3/4 how do I subtract this
    7·2 answers
  • What are the coordinates of point A?<br>​
    11·1 answer
  • Lin took 75 boxes of carrots and 80 boxes of potatoes to the market. She sold 68 boxes of carrots and 71 boxes of potatoes. How
    6·2 answers
  • - a. Find three pairs of numbers for which the least common multiple
    10·1 answer
  • Find the length of the missing side.
    14·1 answer
  • if the slope is -3/5 and the y intercept is 1 what is the slope intercept form of the equation of each line given the slope and
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!