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
laiz [17]
2 years ago
7

Homework due this midnight :0 √∛∛∡∡↓⇄⊃↓→↔

Mathematics
2 answers:
vitfil [10]2 years ago
7 0

Answer:

1. 5.25 - 5= 0.25

2. 5.5 - 4 = 1.5

Step-by-step explanation:

<h3>Find the mean: </h3>
  1. Add all values
  2. Divide by how many numbers there are

Last week:

2 + 3 + 3 + 3 + 4 + 4 + 7 + 7 + 7 + 7 + 8 + 8 = 63

63/12 = 5.25

This week:

2 + 2 + 2 + 3 + 3 + 4 + 4 + 6 + 8 + 8 + 9 + 9 = 60

60/12 = 5

<h3>Last week mean - This week mean: </h3>

Mean of strikes last week - Mean of strikes this week =

5.25 - 5 = 0.25

<h3>Find the Median:  </h3>
  1. Put all values in order
  2. Find the middle value  (If there are two numbers in the middle then find the mean of the two values)

Last week:

2 3 3 3 4 <u>4 7</u> 7 7 7 8 8

4 + 7 = 11

11/ 2 = 5.5

This week:

2  2  2  3  3  <u>4  4 </u> 6  8  8  9  9

4 + 4 = 8

8/2 = 4

<h3>Last week median - this week median: </h3>

5.5 - 4 = 1.5

<h3></h3>
riadik2000 [5.3K]2 years ago
3 0
Last week median - this week median is 1.5
You might be interested in
The amount of coffee that a filling machine puts into an 8-ounce jar is normally distributed with a mean of 8.2 ounces and a sta
nordsb [41]

Answer:

73.30% probability that the sampling error made in estimating the mean amount of coffee for all 8-ounce jars by the mean of a random sample of 100 jars will be at most 0.02 ounce

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 normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

\mu = 8.2, \sigma = 0.18, n = 100, s = \frac{0.18}{\sqrt{100}} = 0.018

What is the probability that the sampling error made in estimating the mean amount of coffee for all 8-ounce jars by the mean of a random sample of 100 jars will be at most 0.02 ounce?

This is the pvalue of Z when X = 8.2 + 0.02 = 8.22 subtracted by the pvalue of Z when X = 8.2 - 0.02 = 8.18. So

X = 8.22

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

By the Central Limit Theorem

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

Z = \frac{8.22 - 8.2}{0.018}

Z = 1.11

Z = 1.11 has a pvalue of 0.8665

X = 8.18

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

Z = \frac{8.18 - 8.2}{0.018}

Z = -1.11

Z = -1.11 has a pvalue of 0.1335

0.8665 - 0.1335 = 0.7330

73.30% probability that the sampling error made in estimating the mean amount of coffee for all 8-ounce jars by the mean of a random sample of 100 jars will be at most 0.02 ounce

8 0
3 years ago
if p= the mountain bikes original price in dollars, which algebraic expression represents the reduce price?
zhannawk [14.2K]
P - 125 would represent the reduced price
5 0
2 years ago
Read 2 more answers
382,706 in expanded form
tamaranim1 [39]
300,000 + 80,000+2,000+700+0+6 , is your answer.
8 0
3 years ago
The scale factor from the large triangle to the small triangle is 3:1 What is the length of side x of the smaller triangle CAN S
NikAS [45]

Answer:

x = 10

Step-by-step explanation:

From what we can see in the diagram, the smaller triangle dimensions were dilated by a factor of 3

So to get the dimensions of the smaller from the bigger or larger triangle, we proceed to divide what we have on the larger triangle by 3

Kindly note that we do this for the comparable sides

Mathematically, we can have x as;

30/3 = 10

8 0
3 years ago
Find x so that al|b. State the converse used.<br> (4x – 18)
-Dominant- [34]

Answer:

its the same bc its a coeficiant i think

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Give f(x) = x2 + 3x - 1, find a) f(1)​
    15·1 answer
  • A + (-5) = 12<br><br> a) a= -17<br> b) a = -7<br> c) a = 7<br> d) a = 17
    14·1 answer
  • two stores sell the same computer for the same orginal price. store a advertises that the computer is 25% off the orginal price.
    7·1 answer
  • What is the percentage decrease?
    7·2 answers
  • The standard deviation assumes a negative value when
    12·1 answer
  • C(squared)L(squared) + 100v(squared) = 100c(squared)<br>I have to solve for L
    13·2 answers
  • HELPPPPP I WILL GIVE U THE BRAINLEST!!!!
    13·1 answer
  • A deck of cards contains 52 cards, of which 4 are aces. You are offered the following wager: Draw one card at random from the de
    13·1 answer
  • A rectangle has an area of 364.5 cm2. If its length is 27 cm, find its<br> perimeter.
    8·1 answer
  • Water flows through a pipe at a rate of 0.12 litres per second.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!