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
dezoksy [38]
3 years ago
7

PLEASE HELP PICTURE ATTACHED

Mathematics
1 answer:
jeyben [28]3 years ago
7 0

Answer: Its 48in

Step-by-step explanation:

Love you all. And good luck.

You might be interested in
A tobacco company claims that the amount of nicotene in its cigarettes is a random variable with mean 2.2 and standard deviation
Aleksandr-060686 [28]

Answer:

0% probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central limit theorem

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 2.2, \sigma = 0.3, n = 100, s = \frac{0.3}{\sqrt{100}} = 0.03

What is the approximate probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true?

This is 1 subtracted by the pvalue of Z when X = 3.1. So

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{3.1 - 2.2}{0.03}

Z = 30

Z = 30 has a pvalue of 1.

1 - 1 = 0

0% probability that the sample mean would have been as high or higher than 3.1 if the company’s claims were true.

4 0
3 years ago
Round off the following decimal numbers to the nearest whole number.​
ElenaW [278]

Answer:

where are the decimal numbers?

6 0
3 years ago
Help! Please!
Elan Coil [88]
Because there are infinitely many numbers that are either greater or less than variable x.
5 0
3 years ago
What would the 'household hourly wage' need to be to make the 'necessary monthly income' in City C? Use 160 hours as the time wo
Troyanec [42]

Answer:

hi

Step-by-step explanation:

8 0
3 years ago
Help with question 16 ASAP​
Zinaida [17]
What the answer yayyayauahahsusjs
5 0
3 years ago
Other questions:
  • How to find the exterior angle sum of a 500gon
    8·1 answer
  • Using Pythagorean Theorem what is the square root of the third side ?
    11·1 answer
  • Consider the function f(x)=x3+3x2â51x+91. What is the remainder if f(x) is divided by (x+9)? Do not include (x+9) in your answer
    15·1 answer
  • The table shows jills math quiz scores. what is the minimum score she needs on her next quiz to have a mean of at least 92
    7·1 answer
  • Kate is 3 years old. Her brother, Scott is 10 years old. A. What is the ratio of Scott's age to Kate's age. B. How many times ol
    6·2 answers
  • Convert 59°F to Celsius, using the formula C = 5/9 (F - 32)
    12·2 answers
  • Who ever solves this is a math wiz
    9·1 answer
  • PLEASE HELP
    6·2 answers
  • Furaha sold a mobile phone at sh.6000 making a profit of 20%. what was the buying price????​
    7·1 answer
  • What are true bearings and how can they be calculated/read?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!