1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katarina [22]
3 years ago
11

what is the probability of drawing two yellow marbles if the first one is placed back in the bag before the second draw. give yo

ur answer as a ratio reduced to simplest terms.​

Mathematics
1 answer:
Svetach [21]3 years ago
5 0

Answer:

1:25

Step-by-step explanation:

There are 2 out of 10 yellow marbles.

2/10 simplified is 1/5

Sorry had to edit its multiplied by each other so its actually 1:25

You might be interested in
The body temperatures of adults are normally distributed with a mean of 98.6degrees° F and a standard deviation of 0.60degrees°
Schach [20]

Answer:

97.72% probability that their mean body temperature is greater than 98.4degrees° F.

Step-by-step explanation:

To solve this question, we have to understand the normal probability distribution and the central limit theorem.

Normal probability distribution:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central limit theorem:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 98.6, \sigma = 0.6, n = 36, s = \frac{0.6}{\sqrt{36}} = 0.1

If 36 adults are randomly​ selected, find the probability that their mean body temperature is greater than 98.4degrees° F.

This is 1 subtracted by the pvalue of Z when X = 98.4. So

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

By the Central Limit Theorem

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

Z = \frac{98.4 - 98.6}{0.1}

Z = -2

Z = -2 has a pvalue of 0.0228

1 - 0.0228 = 0.9772

97.72% probability that their mean body temperature is greater than 98.4degrees° F.

6 0
3 years ago
i am a solid figure with two congruent polygons that are bases,connected with lateral face that are rectangles.
BabaBlast [244]
Rectangular prisim is the answer
6 0
3 years ago
There are fifteen teams in a high school baseball league. How many different orders of finish are possible for the first four ​p
ankoles [38]
There are 32,760 different orders for the first four positions.

This is a permutation where repetition is not allowed; the formula for that is:

_nP_r=\frac{n!}{(n-r)!}

For our problem, we have:
_{15}P_4=\frac{15!}{(15-4)!}=\frac{15!}{11!}=32760
3 0
3 years ago
What is 10 1/12 as a decimal
cricket20 [7]

Answer:

10.083

since 1/12 is .0833333333 and so on, it’s shortened

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A bus is traveling at a constant speed. If the bus trvaels 15 1/2 miles in 1/3 of an hour, how many miles will the bus travel in
Dima020 [189]

Answer:

46.5

Step-by-step explanation:

convert 15 1/2 to 15.5

multiply it by 3 because it moves 15.5 milea every 1/3 of an hour

5 0
2 years ago
Other questions:
  • 9x+y=2<br> -4x-y=-17<br> solve the linear system using elimination
    12·2 answers
  • The six frames show a shapes different positions. Select the description that describes how the shape moves to get from its posi
    7·1 answer
  • In the fraction 15 over 7 which of the following is 15
    7·1 answer
  • What percent of $5.00 is $.75
    5·2 answers
  • Round 562 to the nearest ten
    15·2 answers
  • Solve the equation.<br> n3 = 8
    5·2 answers
  • The president of a university claimed that the entering class this year appeared to be larger than the entering class from previ
    9·2 answers
  • Find the distance between the points: (-1, 5) and (3, -3). In your final answer, include the formula and calculations that you u
    10·1 answer
  • Pls helppp! tysmmmm!!
    12·1 answer
  • Kyle Eunice has 78 blocks. She stacked it in such a way that the topmost row has one block, the row below it has two blocks, and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!