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shepuryov [24]
3 years ago
12

Replacing only the minimum value in a data to a smaller number will change the median

Mathematics
2 answers:
Mamont248 [21]3 years ago
7 0

Solution:

we have been asked to find that whether the given statement is True or False.

Replacing only the minimum value in a data to a smaller number will change the median....FALSE

As we know the median is caluclated by arranging the given numbers in ascending/descending order. The we choose the middle one as a median if total number of numbers are odd. But if toal numbers of numbers are even then we take the average of the middle two and that average is the median.

So if we you are going add a number in the given set of numbers then surely the median is going to change, irrespective of the vaue of the number.

Hence the given statement is  False.

irakobra [83]3 years ago
5 0
This is false my dude.
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Plsss help me!!!Mei graphed the locations of several places in her town on the coordinate plane shown below. There is also
Rama09 [41]

Answer:

(6, -4)? is this on khan academy or smth

Step-by-step explanation:

3 0
3 years ago
Benny is trying to learn how to ride a bike, but is terrified of falling. He did some research, and discovered that if he rides
Anestetic [448]

Answer:

a) 7.14% probability that Benny was learning to ride a bike using the training wheels

b) 28% probability that Benny was learning to ride a bike using the training wheels

Step-by-step explanation:

Bayes Theorem:

Two events, A and B.

P(B|A) = \frac{P(B)*P(A|B)}{P(A)}

In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.

Benny came home crying with a bruise on his knee, after falling. His mom is trying to guess how Benny was trying to learn to ride a bike.

a) Assuming that the probability that Benny was using each of these 3 methods is equal, what is the probability that Benny was learning to ride a bike using the training wheels?

So

Event A: Benny fell

Event B: Benny was using training wheels.

The probability that Benny was using each of these 3 methods is equal

This means that P(B) = \frac{1}{3}

He did some research, and discovered that if he rides a bike with training wheels, the probability of falling is 0.1;

This means that P(A|B) = 0.1

Probability of falling:

1/3 of the time, he uses training wheels. With training wheels, the probability of falling is 0.1.

1/3 of the time, he uses the bike without training wheels. Without training wheels, the probability of falling is 0.5

1/3 of the time, he uses the unicycle, for which he has an 0.8 probability of falling. Then

P(A) = \frac{0.1 + 0.5 + 0.8}{3} = 0.4667

So

P(B|A) = \frac{\frac{1}{3}*0.1}{0.4667} = 0.0714

7.14% probability that Benny was learning to ride a bike using the training wheels

b) Since Benny's mom knows Benny so well, she knows that the probability that he was using training wheels is 0.7, regular bike is 0.2, and unicycle is 0.1. What is the probability now that Benny fell while using the training wheels?

Similar as above, just some probabilities change.

Event A: Benny fell

Event B: Benny was using training wheels.

The probability that he was using training wheels is 0.7

This means that P(B) = 0.7

He did some research, and discovered that if he rides a bike with training wheels, the probability of falling is 0.1;

This means that P(A|B) = 0.1

Probability of falling:

0.7 of the time, he uses training wheels. With training wheels, the probability of falling is 0.1.

0.2 of the time, he uses the bike without training wheels. Without training wheels, the probability of falling is 0.5

0.1 of the time, he uses the unicycle, for which he has an 0.8 probability of falling. Then

P(A) = 0.7*0.1 + 0.2*0.5 + 0.1*0.8 = 0.25

So

P(B|A) = \frac{0.7*0.1}{0.25} = 0.28

28% probability that Benny was learning to ride a bike using the training wheels

7 0
3 years ago
Can someone please solve #8
juin [17]

Answer:

Step-by-step explanation:

2x²+7x=-3

2x²+7x+3=0

2x²+x+6x+3=0

x(2x+1)+3(2x+1)=0

(2x+1)(x+3)=0

x=-1/2,-3

so C

8 0
3 years ago
What is Evaluate<br>120 + 5​
NeX [460]

Answer:

24

Step-by-step explanation:

1: Divide 120 by 5 = 24

Answer: 24

<em><u>Hope this helps.</u></em>

7 0
3 years ago
Mya's lunchbox is shown. What is the volume of the lunchbox? Round to the nearest tenth if necessary.
NISA [10]
V= 720.8 cubed

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3 0
3 years ago
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