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olya-2409 [2.1K]
3 years ago
14

Mrs.parker sold 3/4 pounds of gumballs, 2 1/3 pounds of laffy Taffy and 1 5/6 pounds of candy canes how much candy did Mrs. Park

er sell
Mathematics
1 answer:
DENIUS [597]3 years ago
8 0

Answer:

4.9 pounds

Step-by-step explanation:

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When doing blood testing for a viral infection, the procedure can be made more efficient and less expensive by combining partial
Serjik [45]

Answer:

0.1694 = 16.94% probability of a positive result for three samples combined into one mixture.

Step-by-step explanation:

For each test, there are only two possible outcomes. Either it is positive, or it is negative. The probability of a test being positive or negative is independent of any other test, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

The probability of an individual blood sample testing positive for the virus is 0.06.

This means that p = 0.06

If samples from three people are combined and the mixture tests negative, we know that all three individual samples are negative. Find the probability of a positive result for three samples combined into one mixture.

It will be positive if at least one of the tests is positive, that is:

P(X \geq 1) = 1 - P(X = 0)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{3,0}.(0.06)^{0}.(0.94)^{3} = 0.8306

Then

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.8306 = 0.1694

0.1694 = 16.94% probability of a positive result for three samples combined into one mixture.

8 0
2 years ago
What is the slope of the line that passes through the points (10, 3) and (2, 3) ?
Margarita [4]
Slope: (y2-y1)/(x2-x1)
(3-3)/(2-10) = 0/-8 = 0
The slope is 0
3 0
2 years ago
Read 2 more answers
Alina has just received 3 video games for her birthday to add to her existing 12 video games. A week later she went to the thrif
amm1812
She should have a total of 35 games by now.
4 0
3 years ago
Read 2 more answers
For a year, a chef from a restaurant collected data about the cost of strawberries and cherries in his local food market. this d
torisob [31]

Answer:

A Strawberries generally cost less.

D If the chef pays $6.00 for a pound of fruit, it is most likely cherries.

Step-by-step explanation:

A and D

5 0
3 years ago
Mhanifa can you please help this is due asap
sleet_krkn [62]

Answer:

<h3>Question 1 </h3>
  • <em>Adjacent angles are supplementary, opposite angles are equal</em>

<u>Find x</u>

  • 62 + 5x + 3 = 180
  • 5x = 180 - 65
  • 5x = 115
  • x = 23

<u>Find y</u>

  • 62 = 3y + 2
  • 3y = 60
  • y = 20
<h3>Question 2</h3>
  • <em>Diagonals bisect each other</em>

<u>Find x</u>

  • 4x = 3x + 7
  • x = 7

<u>Find y</u>

  • 6y = 2y + 16
  • 4y = 16
  • y = 4

Correct choice is A

6 0
2 years ago
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