Solution: We are given a population follows a normal distribution with Mean and standard deviation
According to central limit theorem, if we have a population with mean and standard deviation and take large samples from the population, then the distribution of samples means will be approximately normally distributed with mean and standard deviation given below:
Therefore, for the given example the distribution of sample means will be approximately normal with mean and standard deviation given below:
rounded to 2 decimal places.
Answer:
153 cm²
Step-by-step explanation:
The area is given by the formula ...
A = (1/2)bh
where b is the base length, and h is the height measured perpendicular to the base.
The diagram shows b = QR = 18 cm, and h = 17 cm. So, the area is ...
A = (1/2)(18 cm)(17 cm)
A = 153 cm²
Answer:
t1= 5.35
Step-by-step explanation:
Projectile height formula should be
h= -1/2gt^2+v0t+h0
where
h= height, this question asking time when "ball hit the ground" so height is 0
t= time, we look for this variable
v0= initial velocity= 85 feet/s
h0= initial height = 6 feet
g= gravity, assumed 32 feet/s^2
The calculation will be:
h= -1/2gt^2+v0t+h0
0= - 32 t^2+85t+6
0= -16t^2+85t+6
16t^2 - 85t -6 =0
x=
t=
t=
t=
t=
t1=
t1= 5.35
t2=
t2= -0.035
The answer can't be minus, so its t1
The person walked a distance of 120 kilometers in a time 3 hours. (Correct choice: C)
<h3>What is the length of the path covered by a person?</h3>
Herein we have the case of a person walking during a total time of three hours, whose conditions are explained mathematically by the following formula:
x = x / 3 + x / 4 + (x / 3 + 10)
x = (2 / 3) · x + x / 4 + 10
x = (11 / 12) · x + 10
x / 12 = 10
x = 120
The person walked a distance of 120 kilometers in a time 3 hours. (Correct choice: C)
To learn more on linear equations: brainly.com/question/11897796
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Answer:can you please be more especific in how many rabbits are there
Step-by-step explanation: