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Ahat [919]
3 years ago
7

A bag of markers has 4 red markers, 5 blue markers, 3 yellow markers, and 3 green markers. If Maria pulls out a marker without l

ooking, what is the probability he will NOT pull out a blue marker?
Mathematics
2 answers:
dybincka [34]3 years ago
5 0

Answer:

2/3

Step-by-step explanation:

P= (4+3+3)/4+5+3+3

P=10/15

P=2/3

torisob [31]3 years ago
4 0

Answer:

2/3

Step-by-step explanation:

15/15-5/15

10/15

2/3

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50 pts please help me due today links or incorrect answers will get reported
Bumek [7]

Using the normal distribution, the area underneath the shaded region <u>between the two z-scores</u> is given by:

C. 0.6766.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

Hence, for this problem, the area is the <u>p-value of z = 0.75 subtracted by the p-value of z = -1.3</u>.

Looking at the z-table, the p-values are given as follows:

  • z = 0.75: 0.7734.
  • z = -1.3: 0.0968.

Then:

0.7734 - 0.0968 = 0.6766.

Which means that option C is correct.

More can be learned about the normal distribution at brainly.com/question/15181104

#SPJ1

3 0
2 years ago
1. A computer costs $800. If loses 3/4 of its
LenKa [72]

Answer:

600

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Please help :/<br><br> 20 POINTS
Dmitry [639]

Answer:

25.1!

Step-by-step explanation:

all you have to do is C=2πr=2·π·4≈25.13274

To calculate the circumference of a circle, multiply the diameter of the circle with π (pi). The circumference can also be calculated by multiplying 2×radius with pi (π=3.14).

Hope that helped! :)

3 0
3 years ago
Read 2 more answers
Write 9.12 as a repeating decimal into a mixed number in its simplest form
Alex Ar [27]

Answer:

9 4/33.

Step-by-step explanation:

0.12 repeating = 12/99

= 4/33.

5 0
3 years ago
Alex’s printer can print 8 photos in 12 minutes.
Gre4nikov [31]

Answer:

120\ minutes

Step-by-step explanation:

step 1

Alex’s printer

we know that

print 8 photos in 12 minutes

so

by proportion

Find  how long will it take the printer to print 120 photos

\frac{12}{8}=\frac{x}{120}\\ \\x=120*12/8\\ \\x=180\ minutes

step 2

Khalil’s printer

we know that

print 24 photos in 1 hour (60 minutes)

so

by proportion

Find  how long will it take the printer to print 120 photos

\frac{60}{24}=\frac{x}{120}\\ \\x=120*60/24\\ \\x=300\ minutes

step 3

Find the difference

300\ minutes-180\ minutes=120\ minutes

7 0
3 years ago
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