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
Serga [27]
3 years ago
8

Plz Help me I need help

Mathematics
1 answer:
ser-zykov [4K]3 years ago
6 0

Answer:

i looked at it i do think you have it in right

Step-by-step explanation:

You might be interested in
The meaning of significance. Asked to explain the meaning of "statistically significant at the α=0.05 level," a student says: "T
Irina18 [472]

Answer:

This explanation is not correct

Explanation:

Significance level is the probability that the null hypothesis rejected is in fact true. If we say there is a significance level of 0.10 or 10%(α=0.10 level) then there is a 10% chance of incorrectly rejecting the null hypothesis when there is actually no difference.

If we wish to reach a conclusion on rejection or acceptance of the null hypothesis, we could use the p value(the probability that observed results or more extremee results are true given null hypothesis)which we compare with the significance level to conclude. If the significance level is 0.10 and p value is 0.07(since p value is less than significance level) , we reject the null hypothesis and vice versa.

3 0
3 years ago
Help <br> Find a if A = 8a
taurus [48]

Answer:

a(A) = 0

Step-by-step explanation:

8 0
2 years ago
The test results for a class with 24 students are normally distributed with a mean of 82 and a standard deviation of 8.9. What i
alekssr [168]

Answer:

The value is  P( X >  80 ) =  0.58901

Step-by-step explanation:

From the question we are told that

    The sample size is  n  =  24

    The mean is  \mu  =  82  

    The standard deviation is  \sigma  =  8.9

   

Generally the  probability that a randomly chosen student earned a B or higher on the test (score of 80 or higher )  is mathematically represented as

         P( X >  80 ) =  P( \frac{ X - \mu }{\sigma }  > \frac{ 80 - 82 }{ 8.9 } )

\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )

 =>  P( X >  80 ) =  P(Z   > -0.225  )

From the z table  the area under the normal curve to the right  corresponding to    -0.225  is  

     P(Z   > -0.225  )   =   0.58901

=>   P( X >  80 ) =  0.58901

5 0
2 years ago
What is the length of side AB as shown on the coordinate plane? On a coordinate plane, a rectangle has 4 points. Point A is (neg
victus00 [196]

Answer:

6 units

Step-by-step explanation:

Point A (-2, 1)

Point B (4, 1)

Length of AB is the distance between x₁ and x₂ as y₁=y₂=1

AB= x₂- x₁= 4-(-2)= 6 units

Answer is 6 units

6 0
3 years ago
Here are the results of the survey the environmental club conducted.
kirill115 [55]
The median of the data below is 1
7 0
2 years ago
Other questions:
  • 1. Determine a rule that could be used to explain how the volume of a
    10·1 answer
  • Whole note minus 1 half notes minus 2 quarter notes
    7·2 answers
  • WHOEVER GETS IT RIGHT GETS BRAINLIEST
    15·2 answers
  • I got a couple question pleae
    14·2 answers
  • For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 20 N acts on
    13·1 answer
  • If f(x) = x^3 , find x= -5
    12·2 answers
  • Don,Eric, and Finn line up in random order for the cafeteria line. What is the probability that they will line up from front to
    6·2 answers
  • What Percent of 60m is 9m?​
    6·2 answers
  • Triangle PQR is inscribed in a circle with m
    15·1 answer
  • At Lincoln High School, 25% of the students play on a sports team, and 13% of students play on a sports team and take a music cl
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!