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AysviL [449]
2 years ago
14

Assume that when an adult is randomly​ selected, the probability that they do not require vision correction is ​24%. If 12 adult

s are randomly​ selected, find the probability that fewer than 5 of them do not require a vision correction
Mathematics
1 answer:
Rufina [12.5K]2 years ago
6 0

P(X = 5) will have a probability of 0.101 that less than 5 of them do not require vision correction.

<h3>What is the probability?</h3>

Probability is synonymous with possibility. It is concerned with the occurrence of a random event.

Probability can only have a value between 0 and 1. Its simple notion is that something is very likely to occur. It is the proportion of favorable events to the total number of events.

Given data;

The probability that no vision correction is required p = 0.24

No. adults are randomly selected n = 12

We'll introduce a random variable. Out of every six adults, X does not require vision correction. The distribution of X is binomial. The probability required is P ( X = 5 )

From the binomial distribution:

P(X = 5) = 12C₅×(0.24)⁵×(0.77)⁷

P(X = 5) = 792×0.0007962624×0.1604

P(X = 5) = 0.101

Hence, the probability that fewer than 5 of them do not require a vision correction, P(X = 5) will be 0.101.

To learn more about probability, refer to the link: brainly.com/question/795909

#SPJ1

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mestny [16]

Answer:

<ABC = 27

< BAC = 126

Step-by-step explanation:

<C = <B since it is an isosceles triangle.  We know this since AC - AB

<C = 27 so <ABC = 27

The sum of the angles of a triangle = 180

A + B+ C = 180

A + 27+27 = 180

A + 54 =180

A = 180-54

A =126

< BAC = 126

5 0
3 years ago
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erastovalidia [21]

Answer:

4x2−12x+9=0

Step-by-step explanation:

The equation, 2x2+x+3=0, does not have a solution

The equation, x2+5x−3=0, equals -5/2+1/2√37 and -5/2+-1/2√37

The equation, x2−5x+4=0, equal 1 and 4

The equation, 4x2−12x+9=0, equals only 3/2

Hope this Helps

4 0
2 years ago
3w + 7=8 need help with this
LiRa [457]
Hope this helps you out 3w+7=8

The answer is w= 1/3

Step by step:

3w+7=8
Step 1: is subtract is 7 from both sides.
3w+7-7=8-7
3w=1

Step 2: Divide both sides by 3.
3w/3 = 1/3

Your solution is:

w=1/3
6 0
3 years ago
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sasho [114]

\frac{x + 4}{3}  = 2 \\  \\  \\  \text{ Multiply by 3 on both sides,  }\\  \\   \\ =  >  \frac{x + 4}{3}  \times 3 = 2 \times 3 \\  \\  \\  \\  =  > x + 4 = 6 \\ \\   \\  =  > x = 6 - 4 \\  \\  \\   =  > x = 2






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8 0
2 years ago
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Please this is overdue​
andre [41]

P=12

A=15

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2 years ago
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