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klemol [59]
3 years ago
14

Consider the multiple regression model with two regressors x1 and x2​, where both variables are determinants of the dependent va

riable. when omitting x2 from the​ regression, there will be omitted variable bias for modifyingabove beta with caret 1​:
a. if upper x 2 is measured in percentages.
b. only if upper x 2 is a dummy variable.
c. if upper x 1 and upper x 2 are correlated.
d. always.
Mathematics
1 answer:
serious [3.7K]3 years ago
6 0
Hdhisnuabwgqnbdxuwbuebwuacwusvaywvsheue y
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50 students went to Verona. 23 were boys. What percentage were giris?
FrozenT [24]

Answer:

54 percent

Step-by-step explanation:

23 over 50 is .54

5 0
3 years ago
Read 2 more answers
PLEASE HELP ME, THIS MEANS EVERYTHING TO ME ITS APART OF MY FINALS.❗
Alenkinab [10]

Answer:

Uhhhh... 54?

Step-by-step explanation:

Just add them together.

3 0
3 years ago
Suppose a normal distribution has a mean of 98 and a standard deviation of 6. What is P(x<110)? (The greater than sign is act
kvasek [131]

Using the normal distribution, the probability that x is less than 110 is:

A. 0.975.

<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.

The mean and the standard deviation are given as follows:

\mu = 98, \sigma = 6

The probability is the <u>p-value of Z when X = 110</u>, hence:

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

Z = \frac{110 - 98}{6}

Z = 2

Z = 2 has a p-value of 0.975.

Hence option A is correct.

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

#SPJ1

5 0
2 years ago
Thomas is in charge of selling roses for the Graduation dance. The roses sell for $3.50 each. He estimates that the expenses of
KonstantinChe [14]

Answer:

P= $3.5x -$30

Step-by-step explanation:

Let the number of roses Thomas bought and sold be x.

Hence the total selling price would be;

$3.5 × x= $3.5x

The profit = selling price-expenses

P= $3.5x -$30

6 0
4 years ago
Whats 3y+53=7y-55 whats the answer ? *Will be marked brainly king*
vova2212 [387]
<span>3y + 53 = 7y - 55 is a three step equation. Our goal is to get 'y' by itself.

First we subtract 3y on both sides of the equation.

</span>3y + 53 = 7y - 55
-3y          -3y

53 = 4y - 55

Then we add 55 on both sides of the equation.

53 = 4y - 55
+55       +55

108 = 4y

Finally we divide 4 on both sides.

108 = 4y
-----   -----
  4       4

27 = y is the answer
6 0
3 years ago
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