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Ratling [72]
3 years ago
8

A lab technician draws

Mathematics
1 answer:
Shtirlitz [24]3 years ago
7 0
A lab technician draws a sample of blood.
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If z=2.5, x=102 and x=100, what is s?
Bad White [126]

I believe the problem ask for s which is the standard deviation. We must recall that the formula for z statistic is stated as:

z = (x – x over bar) / s

Where,

z = z statistic = 2.5

x = sample value or sample score = 102

x over bar = the sample mean or sample average  = 100

s = standard deviation = unknown

Rewriting the equation in terms of s:

s = (x – x over bar) / z

Substituting the given values into the equation:

s = (102 – 100) / 2.5

s = 0.8  

Therefore the standard deviation s is 0.8

7 0
3 years ago
What is the meaning of the unknown factor and quotient
konstantin123 [22]
Unknown factor is multiplication and then quotient is division 
5 0
3 years ago
The diagram shows three squares that are joined at the vertices to form a right triangle.
garik1379 [7]

Answer:

the first statement ( I )

Step-by-step explanation:

4 0
3 years ago
Need help please
zlopas [31]

Answer:

B

Step-by-step explanation:

6x5=30

30x2/3=20

8 0
1 year ago
How do you divide fractions the way they taught it on 7th grade math edgenuidy * sorry I spelt it wrong it wouldn’t let me spell
Aleksandr [31]

Answer:

I'm old and the way I was taught about fraction division was:

INVERT AND MULTIPLY.

SO: (5/8) divided by (1/4) equals

(5/8) multiplied by (4/1) which equals (20/8) or 2.5

Step-by-step explanation:

7 0
2 years ago
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