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Alona [7]
3 years ago
6

A study by a reputable research organization found that when presented with prints from the same​ individual, a fingerprint expe

rt will correctly identify the match ​% of the time. In​ contrast, a novice will correctly identify the match ​% of the time. Consider a sample of different pairs of​ fingerprints, where each pair is a match. Complete parts a and b below. a. What is the probability that an expert will correctly identify the match in all pairs of​ fingerprints? The probability is nothing. ​(Round to four decimal places as​ needed.)
Mathematics
1 answer:
Degger [83]3 years ago
8 0

Answer:

0.5578

Step-by-step explanation:

Fingerprint correctly match 92 % of the time.

A novice that will correctly identify a match 75​% the time.

Each of the attempts of matching a fingerprint with the individual is independent.

The number of pairs are 7.

a). So the probability that the expert will identify every pair correctly is

= 0.92 x 0.92 x 0.92 x 0.92 x 0.92 x 0.92 x 0.92= 0.927 = 0.5578

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(8 ^ 4 * 9 ^ 5)/(16 ^ 2 * 27 ^ 3)<br>help needed plzzzzzz helppppp ​
Roman55 [17]

Answer:

answer is 48

Step-by-step explanation:

simplified after exponents.

4,096 x 59,049/ 256 x 19,683

simplified after multipled

241,864,704/5,038,848

= 48

6 0
3 years ago
If the variance is 81 grams, what is the standard deviation four times?
Svetlanka [38]

Answer:

102

Step-by-step explanation:

i guess

6 0
2 years ago
Write a rational equation that cannot have a solution at x = 2
balandron [24]

Answer: 5+7=2x

Step-by-step explanation:

8 0
3 years ago
On a piece of paper, graph y&gt;x-1. Then determine which answer choice
zepelin [54]

The graph that matches the given equation is y≥x-1 is Graph A.

Option: C.

<u>Step-by-step explanation:</u>

The given equation y≥x-1 is a linear inequality equation.

Graphing Linear Inequalities differs from graphing regular linear equations. That is it has certain rules to be followed to draw the graph.

  1. First, rearrange the equation as y in the left and other terms in the opposite side.
  2. Check for the line: y= , y≤ and y≥ comes with straight line where as y< and y> comes with a dotted line.
  3. Shading: If y> greater than or y≥ greater than or equal is present then the space above the line has to be shaded. If y< less than or y≤ less than or equal  is present then the space below the line has to be shaded.

For the given equation y≥x-1,

The line will be solid passing through (0,-1) and (3,2) since it has y≥. Also, the region above the line is shaded.

So the graph A is the graph that matches the equation y≥x-1.

8 0
3 years ago
Please help I will give brainlyiest fast please help fast
lana [24]

Answer:

  • A. 49.

Step-by-step explanation:

<u>Given equation:</u>

  • -11 2/3 * (-4 1/5)

<u>Simplify, then solve:</u>

  • -11 2/3 * (-4 1/5)
  • = -35/3 * (-21/5)
  • = \frac{-35 * (-21)}{3 * 5}
  • = 735/15
  • = 49.

Your answer is A. 49.

5 0
2 years ago
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