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mel-nik [20]
2 years ago
3

In the book Chances: risk and odds in Everyday Life, author James Burke says that approximately 57% of the general US population

wears glasses or contacts. If two people are chosen at random from the US population, what is the probability that both wear glasses or contacts?
Mathematics
1 answer:
xxTIMURxx [149]2 years ago
7 0

Answer:

Pr = 32.49\%

Step-by-step explanation:

Given

Let E represents the event of wearing glasses or contacts.

So;

P(E) =57\%

Required

The probability that selected 2 wears glasses

This is calculated as:

Pr = P(E)\ and\ P(E)

Pr = P(E)\ *\ P(E)

Pr = 57\% * 57\%

Pr = 0.57 * 0.57

Pr = 0.3249

Pr = 32.49\%

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If SYSTEM is coded as '131625', and KARMA is coded as '94854' then MARKET is coded as _____? (A) 845926 (B) 548926 (C) 629845 (D
MArishka [77]

Answer:

B. 548926

Step-by-step explanation:

Given

SYSTEM => '131625', and KARMA => '94854'

Required

MARKET is coded as?

To solve this, we simply map out each letter to the given characters;

This is done as follows:

S-> 1

Y-> 3

S-> 1

T-> 6

E -> 2

M-> 5

K-> 9

A-> 4

R-> 8

M-> 5

A -> 4

Remove repetitions

S-> 1

Y-> 3

T-> 6

E -> 2

M-> 5

K-> 9

R-> 8

A -> 4

Now, we can code MARKET using the same system

M-> 5

A -> 4

R-> 8

K-> 9

E -> 2

T-> 6

MARKET => 548926

5 0
2 years ago
Diagonal cross-section of a sphere produces which two dimensional shape
Leni [432]
Every cross-section of a sphere will  be a circle. 

Answer: circle

Any further questions about this? Or how I got my answer?

7 0
2 years ago
The function h(x) = 2.5x + 20 represents your height in inches, h(x), for x years you have been alive. How many inches tall will
sveticcg [70]

Answer:

Step-by-step explanation:

B

3 0
2 years ago
The negative sign in 15t-2t belongs to the term____?
alexdok [17]

The expression 15t – 2t not equivalent to 2t – 15t because the negative sign in 15t – 2t belongs to the term 2t.

Solution:

Given expressions are 15t – 2t and 2t – 15t.

To determine 15t – 2t is equivalent to 2t – 15t or not.

Substitute t = 2 in above two expressions.

15t – 2t = 15(2) – 2(2)

            = 30 – 4

            = 26

2t – 15t = 2(2) – 15(2)

            = 4 – 30

            = –26

The values of the expressions are different when t = 2.

So, 15t – 2t is not equivalent to 2t – 15t.

Hence the expression 15t – 2t not equivalent to 2t – 15t because the negative sign in 15t – 2t belongs to the term 2t.

7 0
2 years ago
What is the least number of inequalities needed to produce a closed region?
Simora [160]
25 is the answer..............
4 0
2 years ago
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