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
mr_godi [17]
3 years ago
9

The weights of boxes of candies produced in a factory are normally distributed with a mean weight of 16 oz and a standard deviat

ion of 1 oz. What is the weight of a box of candies with a z-score of 2?
16 oz

18 oz

20 oz

22 oz
Mathematics
2 answers:
vichka [17]3 years ago
8 0

Answer:

The weight of a box of candies is 18 oz

Option 2 is correct.

Step-by-step explanation:

Given: The weights of boxes of candies produced in a factory are normally distributed with a mean weight of 16 oz and a standard deviation of 1 oz.

Formula: z=\dfrac{x-m}{\sigma}

Mean: m = 16 oz

z-score: z = 2

Standard Deviation: \sigma = 1 oz

Substitute the value into formula.

2=\dfrac{x-16}{1}

2=x-16

x=18

Hence, The weight of a box of candies is 18 oz

JulijaS [17]3 years ago
3 0
Let the required weight be X, then
z = (X - mean)/standard deviation
2 = (X - 16)/1
X - 16 = 2
X = 2 + 16
X = 18 oz.
You might be interested in
Plz help ASAPPPPP :(<br><br> No Links Or Files
gayaneshka [121]

Answer:

the anwser is H

Step-by-step explanation:

  1. frist x^2=16 it means the radical of 16 is x

the radical of 16 is《 4》

♧x^3 it means 4^3=64

the radical of 4 is 2

  1. then 64+2=66
5 0
2 years ago
What is 3x+4x-7=8-3x+11<br> need step by step explanation
Nadya [2.5K]

Answer:

exact form: 13/5

Decimal form: 2.6

x= 2 3/5

Step-by-step explanation:

3x+4x-7=8-3x+11

7x-7=8-3+11

7x-19-3x

7x-7 + 7 =-3x+19+7

7x=-3+26

10x=26

x= 13/5

6 0
2 years ago
Suppose each of 12 players rolls a pair of dice 3 times. Find the probability that at least 4 of the players will roll doubles a
polet [3.4K]

Answer:

Our answer is 0.8172

Step-by-step explanation:

P(doubles on a single roll of pair of dice) =(6/36) =1/6

therefore P(in 3 rolls of pair of dice at least one doubles)=1-P(none of roll shows a double)

=1-(1-1/6)3 =91/216

for 12 players this follows binomial distribution with parameter n=12 and p=91/216

probability that at least 4 of the players will get “doubles” at least once =P(X>=4)

=1-(P(X<=3)

=1-((₁₂ C0)×(91/216)⁰(125/216)¹²+(₁₂ C1)×(91/216)¹(125/216)¹¹+(₁₂ C2)×(91/216)²(125/216)¹⁰+(₁₂ C3)×(91/216)³(125/216)⁹)

=1-0.1828

=0.8172

7 0
3 years ago
What happens to the width of a confidence interval for a population mean if the level of confidence is increased without changin
natulia [17]

Answer: If the level of confidence is increased without changing the sample size then<em> </em><u><em>The margin of error will decrease because the critical value will decrease. The decreased margin of error will cause the confidence interval to be narrower.</em></u>

where;

<em>Margin of error = Critical value × Standard deviation</em>

<em>Here, it can be duly noted that Margin of error has a positive relation with critical value, i.e </em><u><em>The margin of error will decrease because the critical value will decrease.</em></u>

<u><em>whereas;</em></u>

The confidence interval is  <em>the value  ±  the margin of error.</em>

<em>Therefore, </em><u><em>the decreased margin of error will cause the confidence interval to be narrower.</em></u>

7 0
3 years ago
Work out 1 1/5 + 3 2/5
MariettaO [177]

Answer:

Answer is 4 3/5

Step-by-step explanation:

Rewriting our equation with parts separated

=1+15+3+25

Solving the whole number parts

1+3=4

Solving the fraction parts

15+25=35

Combining the whole and fraction parts

4+35=435

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve and justify -3y-15=2(17-5y)
    13·1 answer
  • Least to greatest 2.71,2 3/4,5,5/2
    10·2 answers
  • I have a question. In my class we are doing a new unit and I don't understand it. We are solving systems of equations by graphin
    13·2 answers
  • I need an answer please ASAP |4+7|-|4-7|​
    13·2 answers
  • Which is the better buy? Find the unit rate for each meat. Show your work and explain reasoning.
    10·1 answer
  • Serena simplify the expression 3 (2x - 6 - x + 1 )^2 - 2 + 4x in step 1 she simplified within the parentheses in step 2 she expa
    11·1 answer
  • polygon A i simllar to polgon B. find the perimeer of polygon B if one side of polygon A is 24 A sde to polygon B is 15 and the
    13·1 answer
  • 25 points!!! I would really appreciate the help, please!!! I'll give Brainliest if you show your work, including the points that
    8·1 answer
  • 3. Make up a situation where a quantity is changing.
    5·1 answer
  • Which of the following steps would reduce the fraction 48/64 into its simplest form?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!