Answer:
1200/2000
Step-by-step explanation:
There are 1200 students total that have a GPA less than 3.00. That means that out of 2000 students, 1200 of them have a GPA less than 3.00, hence 1200/2000 chance that a student is picked at random with less than a 3.00.
Answer: 20
Step-by-step explanation:
Answer:
The training does reduce response time at 0.05 level of significance
Step-by-step explanation:
Population mean for a population with normal distribution, where the standard deviation is known and the appropriate significant test is given then;
z=x-μ / δ/√n
where
μ= 9 minutes
x=8 minutes
δ= 4.2
n= 36
Applying the formula;
z= 8-9 / 4.2/√36
z= -1 / 4.2/6
z= -1 /0.7 = - 1.429
Perform the test where
H₀ : p=0.05 verse Ha : p < 0.05
Using the Z-table, find the probability that Z is less than -1.43.
You will find the probability of 0.0764 of Z being more than the value in test thus; there are high chances that results will be observed according to the null hypothesis
Answer:
Step-by-step explanation:
As far as I am able to observe from the statement of your question, the expression is:
![\left[[\left(3^3-7\right)\cdot \frac{5}{10}\right]+\left(\left(1+3+6+9\right)-1\right)](https://tex.z-dn.net/?f=%5Cleft%5B%5B%5Cleft%283%5E3-7%5Cright%29%5Ccdot%20%5Cfrac%7B5%7D%7B10%7D%5Cright%5D%2B%5Cleft%28%5Cleft%281%2B3%2B6%2B9%5Cright%29-1%5Cright%29)
So, lets solve this expression, which anyways would clear your concept
Considering the expression
Lets first solve 
As 
So,
= 
Therefore,
Keywords: Expression solving
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