The following data set is A population ⇒ answer A
Step-by-step explanation:
Lets revise the definition of each choice
1. A population, is a discrete group of people, animals or things that
can be identified by at least one common characteristic for the
purposes of data collection
2. A sample is just a part of a population
3. The parameter is a fixed measure which describes the target population
Parameter is a fixed and unknown numerical value
4. A statistic is a characteristic of a small part of the population
The statistic is a variable and known number which depend on the
sample of the population
∵ All of the teachers in Gwinnett County Public Schools fill out the
survey
∴ The data set is population
The following data set is A population
Learn more:
You can learn more about statistic in brainly.com/question/13540962
#LearnwithBrainly
Answer:
20
pls mark brainliest if possible
Step-by-step explanation:
the range is the difference between the values of the largest and smallest values. You can figure this out with subtraction.
Largest number: 100
Smallest number: 80
Range: 20
Answer:
m= 11.4
Step-by-step explanation:
13.5= m+2.1
Subtract 2.1 to both sides
13.5= m+2.1
-2.1 -2.1
11.4= m
Answer:551.3212cm³
Step-by-step explanation:
Find the image attached
The volume is made up of a cone, cylinder and a hemisphere
Volume of the shape = Volume of cone + volume of cylinder + volume of hemisphere
Get the volume of the cone;
Volume of a cone Vc = 1/3πr²h
r is the base radius = 3.5cm
Height = 10cm
Vc = 1/3π(3.5)²(6)
Vc = 1/3π(12.25)(6)
Vc = 12.25 * 2π
Vc = 24.5π cm³
Get the volume of the cylinder;
Vcy = πr²h
r = 3.5cm
h = 10cm
Vcy = π(3.5)²(10)
Vcy = π(12.25)(10)
Vcy = π(122.5)
Vcy = 122.5π cm³
Get rhe volume of the hemisphere;
Volume of hemisphere = 2/3 πr³
r = 3.5cm
Vh = 2/3 π(3.5)³
Vh = 2/3π(42.875)
Vh = 28.58π cm³
Volume of the shape = VC + Vcy + Vh
Volume of the shape = 24.5π+122.5π+28.58π
Volume of the shape = 175.58π
<em>Volume of the shape = 551.3212cm³</em>
Answer:
1.703
Step-by-step explanation:
The reason we try to find t score is because the sample size is below 30, meaning the sample size is small
Hence:
Step 1
We find the degree of freedom
The Degrees of freedom = Number of samples - 1
The random number of samples = 28
= 28 - 1
= 27
Step 2
Using a t score table or t score calculator, we can obtain the t score value for a 90% confidence interval and degree of freedom of 27
90% confidence interval =
10% significance level = 0.10 for two tails or 0.1/2 = 0.05 for one tail
Hence: t90 = 1.703
