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Leona [35]
3 years ago
11

A z-score of 1.0 corresponds to a value one standard deviation from the mean. True False

Mathematics
2 answers:
a_sh-v [17]3 years ago
7 0

Answer:

True.

Step-by-step explanation:

We have been given a statement and we are asked to determine whether our given statement is true or false.

Statement:

A z-score of 1.0 corresponds to a value one standard deviation from the mean.

We know that z-score of a data set represents how many standard deviation a data point is above or below mean.

Since the z-score of a data set is 1.0, so it represents that the data is 1 standard deviation above mean.

Therefore, our given statement is true.

lukranit [14]3 years ago
4 0

Answer:true is the correct answer

Step-by-step explanation:

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A boy purchased​ (bought) a​ party-length sandwich 54 in. long. He wants to cut it into three pieces so that the middle piece is
iren2701 [21]

Answer:

length of shortest piece = 13 in

length of middle piece =  19 in

length of longest piece =  22 in

Step-by-step explanation:

Total length of sandwich = 54 inch

Let shortest piece = x

Middle piece = x+6

Longest piece = x+9

Add this pieces will make complete sandwich

x+(x+6)+(x+9) = 54

Solving

x+x+6+x+9 = 54

Combining like terms

x+x+x+6+9 = 54

3x + 15 = 54

3x = 54 -15

3x = 39

x = 13

So, length of shortest piece = x = 13 in

length of middle piece = x+6 = 13+6 = 19 in

length of longest piece = x+9 = 13+9 = 22 in

7 0
3 years ago
Read 2 more answers
A calculator screen shows a number in scientific notation as 4.67e-8 write this number in standard form
Amanda [17]

Answer:

467 000 000

Step-by-step explanation:

4.67e-8 is rewritten as 4.67 x 10^-8.

Negative -> decimal with lots of places, Positive -> big, big number

Move the decimal place right 8 times so you end up with a small decimal.

4.67 -> 467000000

5 0
3 years ago
A sea lion dove from the water's surface at sea level to an altitude of −216.12 meters in 2.4 minutes. What is the average chang
alexandr1967 [171]
2.4 minutes is 144 seconds. divide -216.12 by it to get altitude per second. This is 1.5 meters per second. Multiply this by 60 to get the rate per minute, totaling 90.05 meters per minute. Sorry if this explanation was long that was how I remember.
7 0
3 years ago
in triangle ABC shown below, L is the midpoint of BC, M is the midpoint of AB, and N is the midpoint of AC. Find the perimeter o
alexdok [17]

35

since m and n are the midpoints of ab and ac resistively

then ,bc=2mn=16

since m and l are the midpoints of ba and bc respectively

then, ac =2mn =10

then,nc =1/2 × 10 =5

similary, mb=6

then ,perimeter=nc+mb+mn+bc=5+6+8+16=35

6 0
3 years ago
He climbed 16 yards in 32 minutes. What is the change in elevation each minutes?
ra1l [238]

Answer:

.5 yds per minute

Step-by-step explanation:

To find the change in elevation, divide the yards by the minutes

16 yds/ 32 minutes

1/2 yds per minute

.5 yds per minute

3 0
3 years ago
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