If the average yield of cucumber acre is 800 kg, with a variance 1600 kg, and that the amount of the cucumber follows the normal distribution. 1- What percentage of a cucumber give the crop amount between 778 and 834 kg? 2- What the probability of cucumber give the crop exceed 900 kg ?

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: 270

step-by-step explanation:

you have to times 200 by 1.35 to get your answer