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Andru [333]
3 years ago
6

QUICKLY ANSWER PLEASE!!!

Mathematics
1 answer:
vichka [17]3 years ago
3 0
I believe the answer is (A. (x - 1)2 = -0.5  I hope it helps. 
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An intelligence test that has a maximum completion time of 45 minutes was recently administered to a group of 9 people. Their re
Ede4ka [16]

Answer:

a) \bar X=39.9

b) Median =40

c) Bimodal distribution 40,45 with a frequency of 2 for each one

Step-by-step explanation:

Part a

The statistical mean refers "to the mean or average that is used to derive the central tendency of the data in question. It is determined by adding all the data points in a population and then dividing the total by the number of points". And is defined:

\bar X =\frac{\sum_{i=1}^n x_i}{n}

And for this case if we apply this formula we got:

\bar X =\frac{45+40+42+39+44+40+45+33+21}{9}=39.9

Part b

The median is a "measure of central tendency. To find the median, we arrange the observations in order from smallest to largest value. And we have two possible cases:

1) If there is an odd number of observations, the median is the middle value. 2) If there is an even number of observations, the median is the average of the two middle values."

So if we order the dataset we got:

31,33,39,40,40,42,44,45,45

Since we have an odd number of observation n=9, the median would be just the middle value on position 5 and for this case Median =40

Part c

The mode of a set of data values is the value that appears most often. As a set of data can have more than one mode, the mode does not necessarily indicate the centre of a data set.

For this case we have a bimodal distribution and the corresponding values are 40 and 45 with a frequency of 2 for each one.

8 0
3 years ago
Pls help me find the equation and do the table
Goryan [66]

Check the picture below.

$20 when the hours is 0, is pretty much just a base fee Andy has before doing any on location hours of work, namely is a fee the customer owes for the service before anything else, usually is for paperwork required for hte contract.

4 0
3 years ago
Which algebraic expression can be used to calculate the number of tickets fernando can buy?
pentagon [3]
Domain f(x)=1 - 5/x^4
3 0
3 years ago
Help please!! I am freaking out!!
saul85 [17]

Answer:

100.8

Step-by-step explanation:

100%=360

35%=?

35/100*360=100.8

5 0
2 years ago
Read 2 more answers
In the parallelogram, find
Luda [366]

Answer:

{114}^{o}

Step-by-step explanation:

From the question,

< KLO = {73}^{o}

< MLO={41}^{o}

Base on the properties of a parallelogram, KL //JM and JK //ML

So, we can say that, <MLO alternates with <KJO and <KLO alternates with <MJO

Since alternative angles are equal,

< MLO= < KJO = {41}^{o}

< KLO= < MJO = {73}^{o}

In addition

< MLK= < KJM = < KLO + < MLO

< MLK = {41}^{o} + {73}^{o}  = {114}^{o}

Therefore, m<KJM={114}^{o}

3 0
2 years ago
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