Answer:
Its standard deviation is 3.79.
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean 
and standard deviation 
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation 
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this problem, we have that:
So
Its standard deviation is 3.79.
The number of blocks of clay needed by Hyla is 30 blocks
<h3>What is area?</h3>
Area is the region bounded by a plane shape.
To calculate the number of blocks of clay needed by Hyla, we find the area of the bottom of the box and divide it by the area of the block.
Formula:
- n = LWH/lwh............... Equation 1
Where:
- n = Number of blocks of clay needed by Hyla
- L = Length of the bottom of the box
- W = Width of the bottom of the box
- H = Height of the box
- l = Length of the bottom of the block
- w = Width of the block
- h = Height of the block.
From the question,
Given:
- L = 24 cm
- W = 20 cm
- H = 2 cm
- l = 4 cm
- w = 4 cm
- h = 2cm
Substitute these values into equation 1
- n = (24×20×2)/(4×4×2)
- n = 30
Hence, The number of blocks of clay needed by Hyla is 30 blocks
Learn more about area here: brainly.com/question/2217700
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Answer:
(7.8, ∞)
Step-by-step explanation:
Given the inequality :
x > 7.8 ; the inequality can be explicitly interpreted as x greater than 8 ; this means that the inequality holds for all values of x above 7.8
The interval for which the inequality holds true is :
x > 7. 8 - - - > (7.8, ∞)
Answer:
3
Step-by-step explanation:
6 divided 1/2= 3
Answer:
9 and -9
Step-by-step explanation:
