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Ket [755]
2 years ago
15

Random error is: A. an outside influence that affects the true score in a consistent way. B. the extent to which a measure will

produce the same results each time it is used. C. the extent to which a research method measures what it is intended to measure. D. unsystematic influence on the true score.
Mathematics
1 answer:
k0ka [10]2 years ago
5 0
D is the answer, i just done this one
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Determinați numărul real a, stiind că punctul A (1, 0) aparține graficului funcției f:R cu valori în R, f(x)=x-a...Ajutati-ma va
sweet-ann [11.9K]
A (a,0 ) apartine Gf <=> f(a) =0 f(a) =a-2=0 a-2=0 a=2 => A(2,0) apartine Gf.
5 0
3 years ago
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In each turn of a game you toss two coins. if 2 heads come up, you win 2 points and if 1 head comes up you win 1 point. if no he
Blizzard [7]

The expected value of the number of points for each turn is 0.25

<h3>What is expected value?</h3>

Expected value describes the long term average level of a random variable based on its probabilty distribution.

Now, Probability that 2 heads come up is

P(2 is H) = 1/4

Probability that 1 heads come up is

P(1 is H) = 2/4

⇒P(1 is H) = 1/2

Probability that no head will come up

P(no H's) = 1/4

Hence, the expected value for winning of 2points, 1point and  lose of3 points is given as-

Expected value = 2 * P(2 is H) + 1 * P(1 is H)  - 3 * P(no H's)

⇒Expected value = 2 * 1/4 + 1 * 1/2 - 3 * 1/4

= 0.5 + 0.5 - 0.75

⇒Expected value = 0.25

More about Expected value :

brainly.com/question/22715250

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3 0
1 year ago
What is the answer to this???
alexandr1967 [171]

Answer:

A b and c

Step-by-step explanation:

D might be true but i am not sure

8 0
3 years ago
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Find the slope of the line y = 5x + 4.
avanturin [10]

Answer:

x=1/5y+−4/5

Step-by-step explanation:

Let's solve for x.

y=5x+4

Step 1: Flip the equation.

5x+4=y

Step 2: Add -4 to both sides.

5x+4+−4=y+−4/5x=y−4

Step 3: Divide both sides by 5.

5x/5=y−4/5x=1'5y+−4'5

Answer:

x=1/5y+−4/5

( I hope this was helpful) >;D

6 0
3 years ago
Is 16-7=4+5 true, false, or open?
jek_recluse [69]

Answer:

open

Step-by-step explanation:

6 0
3 years ago
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