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3 years ago

What measure of center would you use for a bimodal histogram? and why?

Mathematics

2 answers:

ELEN [110]3 years ago

6 0

Answer:

Unless you have a good reason to use mode or median, like bimodal distributions or heavily skewed data, the best measure to use is the mean. SPSS Tips: Vocabulary: Measures of Central Tendency - Numbers that represent the average or typical score obtained from measurements of a sample.

mojhsa [17]3 years ago

5 0

Mean and median both try to measure the "central tendency" in a data set. The goal of each is to get an idea of a "typical" value in the data set. The mean is commonly used, but sometimes the median is preferred.

pls mark as brainlist ☺️

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Hpw to find exponential decay equation of radioaxtive subsrance

max2010maxim [7]

I believe you are referring to the half-life formula, which is used to calculate the half-life (when the substance drops to half of its original amount) of radioactive substances. The equation is as follows: $A = P(.5)^{t/h}$

A is the remaining amount
P is the initial amount
t is the time that has passed
h is the half-life of the substance

When plugging values into the equation, make sure that t and h are both measured in the same unit (e.g. t days and h days), as well as A and P.

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3 years ago

Heather purchased a new $1,500 laptop by using a credit card with a 17% interest rate. She will pay off the balance in 2 years b

olga2289 [7]

Answer:

1779.84

Step-by-step explanation:

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3 years ago

3(3a+2)+6=30 what does a equal

Naya [18.7K]

Answer:

a=2

Step-by-step explanation:

3(3a+2)+6=30

9a+6+6=30

9a+12=30

9a=18

a=2

4 0

3 years ago

Read 2 more answers

A cell phone provider classifies its customers as Low users (less than 400 minutesper month) or High users (400 or more minutes

Svet_ta [14]

Answer:

a ) See step by step explanation

b) 50% and 50%

Step-by-step explanation:

The definition of type of user x is:

if x < 400 minutes per month low user

if x > 400 minutes per month high user

The value for these states are of course yes or no ( the user is low or high user)

Then:

if the user is low today xt (0) we have the probability of 80% ( 0,8) of have the user in the same condition and 20% (0,2) of having him or her as high user

xt = 1

If the user is high today xt (1) is high today we have the probability of 70% ( 0,7) of having the user in the same condition and 30% (0,3) of having him or her as high user

a) Then we construct the stochastic matrix

Type of user

(xt) xt xt+1

Low (0) or L 0,8 0,2

High(1) or H 0,3 0,7

The resulting equation system is:

xt = 0,8* xt + 0,2* xt+1

xt+1 = 0,3*xt + 0,7* xt+1

1 = xt + xt+1

Solving for variables xt+1 = 1 - xt

xt = 0,8*xt + ( 1 - xt ) * 0,2

xt - 0,8*xt = 0,2 - 0,2xt

xt - 0,6*xt = 0,2

0,4*xt = 0,2

xt = 0,5 and xt+1 = 0,5

b) If in January 0,5 ( 50%) of customesr were low user

In february teh % of low user customer wll be

xt = 0,8* xt + 0,2* xt+1

0,5 = 0,8*0,5 + 0,2*xt+1

0,5 = 0,4 + 0,2 *xt+1

0,1/0,2 = xt+1 xt+1 = 0,5 or 50%

The same answer for March

7 0

3 years ago

Explain how you used mental math

andriy [413]

Addition, I would use the principles of addition.

4 0

3 years ago

Read 2 more answers