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
OleMash [197]
2 years ago
5

Help with exercise

Mathematics
1 answer:
GalinKa [24]2 years ago
7 0

The probability that a randomly selected chocolate bar will have between 200 and 220 calories is 3.97%

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

The zscore is given a:

z = (raw score - mean) / standard deviation

mean = 225, standard deviation o = 10.

a) For x = 200:

z = (200 - 225) / 200 = -0.125

For x = 220:

z = (220 - 225) / 200 = -0.025

P(-0.125 < z < -0.025) = P(z < -0.025) - P(z < -0.125) = 0.4880 - 0.4483 = 3.97%

b) For x = 190:

z = (190 - 225) / 200 = -0.175

P(z < -0.025) = P(z < -0.175) = 0.4286

The probability that a randomly selected chocolate bar will have between 200 and 220 calories is 3.97%

Find out more on equation at: brainly.com/question/2972832

#SPJ1

You might be interested in
Select all the expressions with accurately written descriptions.
Paha777 [63]
Let's try to divide the sentence into multiple parts and then combine it one by one to make it easier to understand. 

1. True
2 times y and 6                                                          -------->(2y+6)
the square of the sum of "2 times y and 6"             -------->(2y+6)^2
8 times  "the square of the sum of 2 times y and 6"------> 8(2y+6)^2

2. True
the difference of x and 7                            -------->(x-7)
9 and x                                                         -------->(9 + x)
2 times the product of the sum of
"9 and x" and "the difference of x and 7"-------> 2(9 + x)  (x-7)

3. True
difference of 5 times x and 3   -------->(5x-3)
the square of the difference of 5 times x and 3------->(5x-3)^2

4. False
The description should be: the product of 7 and the square of x
the product of 7 and x                        -------->(7x)
the square of the product of 7 and x -------->(7x)^2

5. True
This one should be clear as it was one sentences
the sum of y squared(y^2) and three times y(3y) minus 4-------->y^2+ 3y -4

6. False
The description should be: the product of 5 and 8 times the square of x plus the sum of 20x and 8
the sum of 20x and 8                -------->20x+8
8 plus the square of x plus the sum of 20x and 8-------->8+ x^2 +20x+8
the product of 5 and....                ------->(5)(........
the product of 5 and
8 plus the square of x plus the sum of 20x and 8---->(5)(8+ x^2 +20x+8)
5 0
2 years ago
Read 2 more answers
I kinda need help on this! <br><br> which ordered pair represents the coordinates of point H
Alex73 [517]
I believe it is the last answer choice
7 0
2 years ago
If a Play Station was bought for $558 after a 10%
Ivanshal [37]

Answer:

620

Step-by-step explanation:

55800/90

6 0
2 years ago
Read 2 more answers
Find the distance from albertos horseshoe to Rebecca's horseshoe explain
Kruka [31]

Answer:

Wheres the picture?

Step-by-step explanation:

7 0
3 years ago
Which expression shows the correct multiplication of the following polynomilas? 3x(6x^2-3x+7)
snow_tiger [21]

Answer: 18x^3-9x^2+21x

Solution:

3x(6x^2-3x+7)=

Applying the distributive property in the multiplication to eliminate the parentheses:

(3x)(6x^2)+(3x)(-3x)+(3x)(7)=

(3*6)x^(1+2)+3*(-3)x^(1+1)+(3*7)x=

18x^3-9x^2+21x

8 0
3 years ago
Other questions:
  • How to simplify the expression 7x+15x
    12·2 answers
  • I put 80 POINTS into question please answer
    13·2 answers
  • Eric has 5 CDs that he is going to give away. He lets his best friend choose 3 of the 5 CDs. How many different groups of 3 CDs
    10·1 answer
  • A blue die and green die are rolled find the probability that the sum is 12​
    7·1 answer
  • 1760 is compounded daily at a rate of 6% for 7 years
    8·1 answer
  • Use the compound interest formula to find the present value P, for the following given values: A = $11, 200, i = 0.067, n = 120
    8·1 answer
  • Last night the temperature in New York City went down t 4 degrees F. In Antarctica, the temperature went down to -20 degrees F.
    10·2 answers
  • What does 5/16 minus 7/24 equal?
    15·2 answers
  • The angles of o triangle are in<br>the ratio2: 3: 5<br> Find all the angle in grade<br>​
    6·1 answer
  • Write the decimal in fraction notation 0.0097
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!