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anzhelika [568]
3 years ago
6

In a normal distribution, a data value located 0.8 standard deviations below the mean has Standard Score: z =

Mathematics
1 answer:
Svetlanka [38]3 years ago
7 0

Answer:

z= a letter before y

Step-by-step explanation:

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Ow many significant figures are in the number 0.0040090?
Bumek [7]

5 significant figures but note that 0 is only non-significant when it begins a decimal its only significant when it's in between numbers or after a number

7 0
3 years ago
Q3. A bag contains 7 red balls and 3 green balls. A ball is taken out replaced.
ycow [4]

Part (a)

There are 7 red out of 7+3 = 10 total

<h3>Answer: 7/10</h3>

==========================================================

Part (b)

We have 3 green out of 10 total

<h3>Answer: 3/10</h3>

==========================================================

Part (c)

3/10 is the probability of getting green on any selection. This is because we put the first selection back (or it is replaced with an identical copy)

So (3/10)*(3/10) = 9/100 is the probability of getting two green in a row.

<h3>Answer: 9/100</h3>

==========================================================

Part (d)

Similar to part (c) we have 7/10 as the probability of getting red on each independent selection.

(7/10)*(7/10) = 49/100

<h3>Answer: 49/100</h3>

==========================================================

Part (e)

7/10 is the probability of getting red and 3/10 is the probability of getting green. Each selection is independent of any others.

(7/10)*(3/10) = 21/100

<h3>Answer: 21/100</h3>

==========================================================

Part (f)

We have the exact same set up as part (e). Notice how (7/10)*(3/10) is the same as (3/10)*(7/10).

<h3>Answer: 21/100</h3>
7 0
3 years ago
To decrease an amount by 24% what single multiplier would you use
guapka [62]
100-24=76
76%=76/100=0.76
single multiplier=0.76
5 0
3 years ago
Janet is painting her shed. She buys some gallon-sized paint cans that cost $15 each and 2 quart-sized paint cans that cost $4 e
blondinia [14]

1 gallon cost $15

1 quarts cost $4

1 quarts = 1/4 gallon

15x for number of gallon cans

2 cans at $4 each = $8

15x + 8 = 53

Subtract 8 from both sides:

15x = 53-8

15x = 45

Divide both sides by 15:

x = 45/15

x = 3

She bought 3 gallon cans of paint

Plus she bought 2 quart cans, which is equal to a half gallon.

She bought a total of 3.5 gallons of paint.

7 0
3 years ago
If a parabola’s focus is at (1,1) and directrix is at y = 7, what is the standard form of the equation representing this parabol
inysia [295]
<span>y=1/12(x-1)2<span>+4

attached is a file/ picture i made in google images of a graph of it, i explain the steps as well.
id appreciate a brainliest since the drawing took a good 15 minutes but its up to you! Hope i helped.</span></span>

4 0
4 years ago
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