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almond37 [142]
3 years ago
9

Stacy Wood at the Moore School of Business in South Carolina is studying what people crave, familiar food or new food, during pe

riods of change in their lives. For her samples, those that self identified themselves as in a period of change, chose the new item 70% of the time, whereas students who self-identified themselves as not in a period of change, chose the new item 40% of the time. For the part that is listed in bold, what part of the field of statistics is this?
a. description
b. design
c. inference
Mathematics
1 answer:
Volgvan3 years ago
8 0

Answer:

a. description

Step-by-step explanation:

Description statistics is used to summarize sample or population by determining some of its parameters like mean, variance, standard deviation, proportion etc.

Stacy Wood at the Moore School of Business in South Carolina studied her samples and find sample proportions of a specific characteristic (proportion of people who chose new item) from two different samples of people who are identifying themselfves in a period of change and people who are not)

For example, if she further continues the study and finds with 95% confidence that proportion of people who are in a perid of change choses new item are higher than the proportion of people who are not in a period of change, then she would have made inferential statistics.  

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List the factors of 24.
Sergio [31]

Answer:

Therefore , the factors of 24 are = 1,2,3,4,6,12 and 24

Step-by-step explanation:

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Multiple choice question, person that show's the most work gets brainliest, question is down below.
maria [59]

(- 1 + √3)/2

rationalise the denominator by multiplying the numerator/denominator by the conjugate of the denominator.

the conjugate of 1 + √3 is 1 - √3

(1 - √3)/(1 + √3)(1 - √3) = (1 - √3)/( 1² - (√3)²) = (1 - √3)/(1 - 3) = (1 - √3)/(- 2)

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4 0
3 years ago
Circle P is divided into four central angles by the diameters AC and BD.
Vanyuwa [196]

Answer:

m∠CPD = 129.75°

Step-by-step explanation:

m∠APD + m∠APB = 180 since the angles are supplementary

x + 1 + 3x - 18 = 180

4x - 17 = 180

4x = 197

x = 49.25

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8 0
2 years ago
PLEASE HELP! 100 POINTS!!+ BRAINLIEST!!
Karolina [17]

<em>Height of the pole (DC) is 57.2709m</em>

Step-by-step explanation:

Here, Wire DA and Wire DB supports a pole.

Given that Angle, A=54 , B= 72.

Also, AB = 23m

Now, Taking triangle BCD and Using basic trigonometry

Height of pole H = DC

TanB = \frac{DC}{BC}

BC= \frac{DC}{TanB}

Now, Taking triangle ACD and Using basic trigonometry

TanA = \frac{DC}{AC}

AC= \frac{DC}{TanA}

From figure, we know that

AC = AB + BC

AC - BC = AB = 23

Replacing values of AC and BC

\frac{DC}{TanA} - \frac{DC}{TanB}=23\\DC(\frac{1}{TanA}-\frac{1}{TanB})=23

Now, TanB= Tan72 =3.0776 and TanA = Tan54=1.3763

DC (\frac{1}{1.3763} - \frac{1}{3.0776})_= 23

DC ( 0.7265-0.3249)= 23

DC ( 0.4016 )= 23

DC = 57.2709

Thus, Height of thepole is 57.2709m

5 0
3 years ago
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