Answer:
a
The percentage is

b
The probability is 
Step-by-step explanation:
From the question we are told that
The population mean is 
The variance is 
The range consider is 
The value consider in second question is 
Generally the standard deviation is mathematically represented as

substituting value

The percentage of a cucumber give the crop amount between 778 and 834 kg is mathematically represented as

Generally 
So


From the z-table the value for 
and
So


The percentage is

The probability of cucumber give the crop exceed 900 kg is mathematically represented as

substituting values


From the z-table the value for 
Answer:
55
Step-by-step explanation:
to get rs you simply add st and rt together,
Answer:
d.)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Data Given: m = 70 kg , g = 9.8 ms^-2, h =10m.
For this case we can use the following formula:

For this case we need to find an expression for the force in terms of the distance. And since on this case the total distance is 10 m long we can write the expression like this:

The only acceleration on this case is the gravity and if we replace the values given we got:

Now we can find the required work with the following integral:


Put the numbers in order
1,2,3,5,6,9,9
Q1 = 2
Q2 (median -- middle number) = 5
Q3 = 9
IQR = Q3 - Q1 = 9 - 2 = 7