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const2013 [10]
2 years ago
6

suppose the z-score of your grade in this statistics course turns out to be .97. interpret this z-score.

Mathematics
1 answer:
Anon25 [30]2 years ago
5 0

A z score of 0.97 corresponds with a probability of 83.40%

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean,\sigma=standard\ deviation

From the normal distribution table:

P(z < 0.97) = 0.8340 = 83.40%

A z score of 0.97 corresponds with a probability of 83.40%

Find out more on z score at: brainly.com/question/25638875

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Deserts advance linearly, in easily mappable patterns.<br><br><br> True <br> False
mario62 [17]
It is false that deserts advance linearly, in easily mappable patterns.
Deserts don't really have a pattern when they are advancing - there are so many ways they can do this. 
7 0
3 years ago
Read 2 more answers
what do the following two equations represent? please help 4x+2y= 10 4x-2y= -10 a) the same line b) distance parallel lines c) p
Lady bird [3.3K]

Answer:

D

Step-by-step explanation:

The equations are

● 4x + 2y = 10 (1)

● 4x - 2y = -10 (2)

● 4x + 2y = 10

Add - 4x to both sides

● 4x + 2y -4x = 10 -4x

● 2y = 10 -4x

Divide both sides by 2

● 2y/2 = (10 - 4x)/2

● y = 5 - 2x

● y = -2x + 5 (1)

● 4x - 2y = -10

Add -4x to both sides

● 4x -2y -4x = -10 - 4x

● -2y = -10 - 4x

Divide both sides by -2

● -2y/-2 = (-10 -4x)/-2

● y = 10 + 2x

● y = 2x + 5 (2)

So the equation are

● y = 2x + 5

● y = -2x + 5

Graph them

The lines intersect at (0,5) but aren't perpendicular

So the answer is d

8 0
3 years ago
Helppppppppppppppppppppppppp
Maslowich

Answer:

I can't seem to solve these but hope this information helps :)

Step-by-step explanation:

Remove any grouping symbol such as brackets and parentheses by multiplying factors.

Use the exponent rule to remove grouping if the terms are containing exponents.

Combine the like terms by addition or subtraction.

Combine the constants.

7 0
3 years ago
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Tell whether the equation has one, zero, or infinitely many solutions:<br>9(x - 4) +15=9x – 21​
Mama L [17]

Answer:

Infinite solutions

Step-by-step explanation:

Simplify both sides, subtract 9x, and add 21x to both sides and you will get 0 = 0 so there is infinite solutions.

8 0
3 years ago
Amber wants to buy her chicken food for the entire year (52 weeks).the chickens eat 9 pounds of food a week. the food is package
ipn [44]

Answer:

19 bags

Step-by-step explanation:

52 x 9=468 pounds of food

468 / 25=18.72 or 19 bags

5 0
3 years ago
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