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3 years ago

I need all the answers

Mathematics

1 answer:

Veronika [31]3 years ago

3 0

169375923763928374774992228737474783938.84747474848883939939393838383838383io3

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the ratio of pink marbles to white marbles in Samaras bag is equal to 1:5. what percent of the bag contains pink marble

kenny6666 [7]

1:5= 1/5 x 20/20= 20/100

20/100= 0.20

The bag contains 20% of pink marbles.

3 0

3 years ago

Refer to the Trowbridge Manufacturing example in Problem 2-35. The quality control inspection proce- dure is to select 6 items,

Ivanshal [37]

Answer:

77.64% probability that there will be 0 or 1 defects in a sample of 6.

Step-by-step explanation:

For each item, there are only two possible outcomes. Either it is defective, or it is not. The probability of an item being defective is independent of other items. So we use the binomial probability distribution 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 true proportion of defects is 0.15

This means that $p = 0.15$

Sample of 6:

This means that $n = 6$

What is the probability that there will be 0 or 1 defects in a sample of 6?

$P(X \leq 1) = P(X = 0) + P(X = 1)$

In which

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

$P(X = 0) = C_{6,0}.(0.15)^{0}.(0.85)^{6} = 0.3771$

$P(X = 1) = C_{6,1}.(0.15)^{1}.(0.85)^{5} = 0.3993$

$P(X \leq 1) = P(X = 0) + P(X = 1) = 0.3771 + 0.3993 = 0.7764$

77.64% probability that there will be 0 or 1 defects in a sample of 6.

5 0

3 years ago

HELPPP<br> From 8 A.M. to noon, the temperature change was -16F. Find the average change per hour

dimaraw [331]

-16F temperature change divided by 4 hour difference from 8 to 12/noon.
-16 divided by 4 = -4
The answer is -4 degrees Fahrenheit.

3 0

3 years ago

Write an inequality for the situation. all real numbers at most –9.5 or at least 5.5

Tomtit [17]

Hello,

If b represents any real number,

b<=-9.5
or
5.5<=b

Answer C

8 0

3 years ago

Read 2 more answers

City cabs charges a $2.25 pickup fee and $1.25 per mile traveled diego's fare for a cross-town cab ride is $18.50 how far did he

Kruka [31]

Using proportions, it is found that Diego traveled 15 miles in the cross-town cab ride.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, for the miles traveled, Diego paid 18.50 - 2.25 = $16.25. Considering the fee of $1.25 per mile, the distance he traveled is given by:

d = 16.25/1.25 = 15.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

8 0

2 years ago