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
hichkok12 [17]
3 years ago
13

"A normal distribution of test scores has a mean of 38 and a standard deviation of 6. Everyone scoring at or above the 80th perc

entile gets placed in an advanced class. What is the cutoff score to get into the class
Mathematics
2 answers:
Eduardwww [97]3 years ago
8 0

Answer:

43.05, meaning a score of 43

Step-by-step explanation:

Komok [63]3 years ago
3 0

Answer: the cutoff score to get into the class is 43

Step-by-step explanation:

Since the scores on the test are normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = scores on the test.

µ = mean score

σ = standard deviation

From the information given,

µ = 38

σ = 6

The probability value for the 80th percentile is 80/100 = 0.8

Looking at the normal distribution table, the z score corresponding to the probability value is 0.85

Therefore,

0.85 = (x - 38)/6

Cross multiplying by 6, it becomes

0.85 × 6 = x - 38

5.1 = x - 38

x = 5.1 + 38

x = 43.1

Approximately 43

You might be interested in
What is the slope of a vertical line
BlackZzzverrR [31]
JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+ JUMPOUTDAHOUSE*^+
4 0
3 years ago
Read 2 more answers
Question <br> 7 - (-3)=<br> PLEASE HELP ME!!!
Roman55 [17]

Answer:

10

Step-by-step explanation:

7-(-3)

=7+3

=10

Hope this is helpful

7 0
2 years ago
Read 2 more answers
A researcher computes a 2 x 3 factorial anova. in this example, how many interactions can be observed?
Ivan

 

<span>The one-way ANOVA or one – way analysis of variance is used to know whether there are statistically substantial dissimilarities among the averages of three or more independent sets. It compares the means between the sets that is being examined whether any of those means are statistically pointedly dissimilar from each other. If it does have a significant result, then the alternative hypothesis can be accepted and that would mean that two sets are pointedly different from each other. The symbol, ∑ is a summation sign that drills us to sum the elements of a sequence. The variable of summation is represented by an index that is placed under the summation sign and is often embodied by i. The index is always equal to 1 and adopt values beginning with the value on the right hand side of the equation and finishing it with the value over head the summation sign.</span>

7 0
3 years ago
Received good return from m center of rs 5000 (journal entry)​
HACTEHA [7]

Answer:

Date                  Account Title                                              Debit             Credit

XX-XX-XXX      Sales returns and Allowances              Rs. 5,000

                        Accounts receivable - M Center                                   Rs. 5,000  

                         Inventory                                                Rs. 5,000

                         Cost of Goods sold                                                        Rs. 5,000

7 0
3 years ago
2.300 in word form and the value of 3
Sunny_sXe [5.5K]
Two and Three Tenths is the word form of 2.300. 
The 3 holds the value of Three Tenths.
8 0
3 years ago
Other questions:
  • Find the difference: 16.25 - 7.92
    5·2 answers
  • A rectangular box is 8 1/2 inches long. 5 1/4 inches wide, and 4 inches high. What is its volume?
    7·1 answer
  • Barbara is building a wooden cabin. The cabin is 42 meters wide. She obtained a bunch of 27 meters long wooden beams for the roo
    8·1 answer
  • What is the approximate distance between the points (-5,1) and (-2,3) on a coordinate grid? Show me an example please
    5·1 answer
  • Find the slope pls helpppp
    11·1 answer
  • Find the volume of the pyramid.
    5·2 answers
  • 10 points per answer!
    15·2 answers
  • (-1)(-6 +3i) + (81)(-8+ 4i)
    8·1 answer
  • Plz help will mark you as brainliest(plz answer 42 and 43​
    15·1 answer
  • Write the equation of the line in slope-intercept form.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!