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AnnZ [28]
4 years ago
14

Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st

andard deviation of 100. What proportion of students had a higher score than Amanda? Use your z table
Mathematics
1 answer:
yawa3891 [41]4 years ago
3 0
The answer is 0.806 I believe. The whole process was far too much to type onto hear because I don't want you to be reading an essay if you're in a hurry.
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Does anyone know this? please help
natali 33 [55]

Answer:

3rd answer

Step-by-step explanation:

it would be the third answer

6 0
3 years ago
Write the equation of a line with a slope of 3 and a y-intercept of 4
katrin [286]

Answer:

y = 3x + 4

Step-by-step explanation:

7 0
3 years ago
Please answer this question only if you know the answer!! 85 points and brainliest!
Anuta_ua [19.1K]

Answer:

The game is not fair

Step-by-step explanation:

Let us find the sample space.  It is the sum of the two spins

1+1 1+2 1+3  1+4

2+1 2+2  2+3  2+4

3+1 3+2 3+3 3+4

4+1  4+2  4+3  4+4

Adding

2,3,4,5

3,4,5,6

4,5,6,7

5,6,7,8

P(2) = 1/16

p(3) = 2/16

p(4) = 3/16

p(5) = 4/16

p(6) = 3/16

p(7) = 2/16

p(8) = 1/16

Player A gets a point if the sum is 6 or more

P (6,7,8) = P (6) + P(7) + P(8)  since they are independent event

              =( 3+2+1) /16 = 6/16 = 3/8

Player P gets a point if the sum is less than 6

P (2,3,4,5) =P (2) + P(3) + P(4 + P(5)

                 (1+2+3+4)/16 = 10/16= 5/8

Player B has a better chance of winning, so the game is not fair

7 0
3 years ago
Read 2 more answers
Stacy and Travis are rock climbing. Stacy's rope is 4 feet shorter than 3 times the length of Travis' rope. Stacy's rope is 23 f
abruzzese [7]
First, take off 4 feet of Stacy's rope, which is 19. (23-4=19). Then, divide 19 by 3. It should equal 6.3...
7 0
3 years ago
1/6(x-5)=1/2(x+6) what is the solution to this equation
Alexandra [31]

Answer:

Exact Form:

x= -23/2

Decimal:

x= -11.5

Mixed Number:

x= -11/2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

3 0
3 years ago
Read 2 more answers
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