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
Elis [28]
3 years ago
14

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
1 answer:
ehidna [41]3 years ago
6 0

Answer:  1) 0.10

               2) 0.60

               3) 0.20

               4) 0.10

<u>Step-by-step explanation:</u>

The total frequency is 20+120+40+20 = 200.  This means they ran the experiment 200 times.  The probability distribution is calculated by the satisfactory number of outcomes (frequency) divided by the total number of experiments/outcomes (total frequency):

\begin{array}{c|c||lc}\underline{x}&\underline{f}&\underline{f\div 200}&\underline{\text{Probability Distribution}}\\1&20&20\div200=&0.10\\2&120&120\div 200=&0.60\\3&40&40\div 200=&0.20\\4&20&20\div 200=&0.10\end{array}\right]

You might be interested in
Solve for x.<br> 7 × (3 + 8) = x
Ksju [112]
The answer to this equation is 77.. x=77
3 0
3 years ago
Read 2 more answers
A local charity organization wants to raise at least $1,285 for a group in need. The
adoni [48]

Answer:

srry, not enough info...

Step-by-step explanation:

If you could maybe show the graphs?

7 0
3 years ago
A buyer went to the market to buy strawberries. He purchased 120 randomly selected strawberries from a vendor who claimed that n
mafiozo [28]

Answer:

z=\frac{0.333 -0.25}{\sqrt{\frac{0.25(1-0.25)}{120}}}=2.10  

p_v =P(z>2.10)=0.018  

At 5% of significance we can conclude that the true proportion of strawberries damage is higher than 0.25

Step-by-step explanation:

Data given and notation

n=120 represent the random sample taken

X=40 represent the number of strawberries damaged

\hat p=\frac{40}{120}=0.333 estimated proportion of strawberries damaged

p_o=0.25 is the value that we want to test

\alpha represent the significance level

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that no more than 25% of his total harvest of strawberries was damaged.:  

Null hypothesis:p\leq 0.25  

Alternative hypothesis:p > 0.25  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.333 -0.25}{\sqrt{\frac{0.25(1-0.25)}{120}}}=2.10  

Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The next step would be calculate the p value for this test.  

Since is a right tailed test the p value would be:  

p_v =P(z>2.10)=0.018  

At 5% of significance we can conclude that the true proportion of strawberries damage is higher than 0.25

6 0
3 years ago
1. A dolphin was swimming 28 ft. below the surface. The dolphin jumped up 17 ft. above
vfiekz [6]

Answer:

-11

Step-by-step explanation:

5 0
3 years ago
A taxi service charges one dollar for the first 1/10 of a mile then $.10 for each additional 1/10 of a mile after that
Evgen [1.6K]

Answer:

y  = 1.00+0.10 x (if this is what you meant)

Step-by-step explanation:

Given that a taxi has a minimum charge of 1 dollar upto 1/10 mile and adds 0.10 for every additional 1/10 mile.

If a person travels <=1/10 miles his charges are 1 dollar

If he travels >1/10 miles charges are 1 dollar +0.10(extra miles 1/10)

Let y be the charges and x be the no of 1/10 miles.

Then the equation for y in terms of x would be

y =1.00 +1/10(x)

y  = 1.00+0.10 x

3 0
3 years ago
Other questions:
  • Which is an example of identity property of addition
    6·2 answers
  • What is the missing fraction for halfway between 3/6 and 5/6??
    6·1 answer
  • The base angle of an isosceles triangle measures 54 degrees. What is the measure of its vertex angle? A) 27degrees B) 36 degrees
    15·1 answer
  • A rotation is a isometry that ?
    15·1 answer
  • Math class is 6.23 hours long reading is 23 minutes long<br>what is the difference​
    14·1 answer
  • 20 POINTS PLEASE HELP ME!!!
    14·1 answer
  • Can anybody give me the answer
    8·1 answer
  • Santiago hope to buy a 4 horse trailer for about $12,000. describe all the numbers that when rounded to the nearest hundred are
    15·2 answers
  • Let f(x)=8x+5 and g(x)=9x-2. find the function.<br>f - g<br>(f - g) (x) =<br>find the domain.​
    15·1 answer
  • Find the sine of ZI. J 21 D I Write your answer in simplified, rationalized form. Do not round.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!