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ANTONII [103]
3 years ago
12

3 ones + 2 tenths +5 hundredths =​

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

3.25

Step-by-step explanation:

3 + 0.2 + 0.05 =

bagirrra123 [75]3 years ago
4 0

3.25 is the answer

Step-by-step explanation:

you would add them as decimals

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In studies for a​ medication, 3 percent of patients gained weight as a side effect. Suppose 643 patients are randomly selected.
timofeeve [1]

Part a)

It was given that 3% of patients gained weight as a side effect.

This means

p = 0.03

q = 1 - 0.03 = 0.97

The mean is

\mu  = np

\mu = 643 \times 0.03 = 19.29

The standard deviation is

\sigma =  \sqrt{npq}

\sigma =  \sqrt{643 \times 0.03 \times 0.97}

\sigma =4.33

We want to find the probability that exactly 24 patients will gain weight as side effect.

P(X=24)

We apply the Continuity Correction Factor(CCF)

P(24-0.5<X<24+0.5)=P(23.5<X<24.5)

We convert to z-scores.

P(23.5 \: < \: X \: < \: 24.5) = P( \frac{23.5 - 19.29}{4.33} \: < \: z \: < \:  \frac{24.5 - 19.29}{4.33} ) \\  = P( 0.97\: < \: z \: < \:  1.20) \\  = 0.051

Part b) We want to find the probability that 24 or fewer patients will gain weight as a side effect.

P(X≤24)

We apply the continuity correction factor to get;

P(X<24+0.5)=P(X<24.5)

We convert to z-scores to get:

P(X \: < \: 24.5) = P(z \: < \:  \frac{24.5 - 19.29}{4.33} )  \\ =   P(z \: < \: 1.20)  \\  = 0.8849

Part c)

We want to find the probability that

11 or more patients will gain weight as a side effect.

P(X≥11)

Apply correction factor to get:

P(X>11-0.5)=P(X>10.5)

We convert to z-scores:

P(X \: > \: 10.5) = P(z \: > \:  \frac{10.5 - 19.29}{4.33} )  \\ = P(z \: > \:  - 2.03)

= 0.9788

Part d)

We want to find the probability that:

between 24 and 28, inclusive, will gain weight as a side effect.

P(24≤X≤28)=

P(23.5≤X≤28.5)

Convert to z-scores:

P(23.5  \:  <  \: X \:  <  \: 28.5) = P( \frac{23.5 - 19.29}{4.33}   \:  <  \: z \:  <  \:  \frac{28.5 - 19.29}{4.33} ) \\  = P( 0.97\:  <  \: z \:  <  \: 2.13) \\  = 0.1494

3 0
4 years ago
Describe how the product of 0.4 × 2 would look on a ten-square grid. The product would have _____ squares shaded out of 10.
krek1111 [17]
0.8 squares shaded out of 10

You just do 4x2 which is 8

Then add the 0. In front of 8

Easy as that
8 0
3 years ago
HSMath easy 10 points yk the vibes
kramer
The answer is four because 2 x 0 is 0 and then 12 divided by 3 is for


THE ANSWER IS 4
5 0
3 years ago
Please help me solve this word problem please
leonid [27]

Answer:

it is 69

Step-by-step explanation:

do calculations

8 0
3 years ago
4x + 8y = 20<br> -4x + 2y = -30
zaharov [31]
Ignore what is scribbled out but I hope this helps!

5 0
4 years ago
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