The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of 1414. Find the standard deviation for the number of seeds germinating in each batch. Round to the nearest tenth.

Respuesta :

Answer:   1.7

Step-by-step explanation:

Given : The probability that a radish seed will germinate is p=0.7.

A gardener plants seeds in batches of n=14.

For binomial distribution, the standard deviation is given by :-

[tex]\sigma=\sqrt{np(1-p)}[/tex]

Then, the standard deviation for the number of seeds germinating in each batch will be :-

[tex]\sigma=\sqrt{14(0.7)(1-0.7)}\\\\=\sqrt{14(0.7)(0.3)}\\\\=\sqrt{2.94}=1.71464281995\approx1.7\ \ [\text{Rounded to the nearest tenth}][/tex]

Hence, the standard deviation for the number of seeds germinating in each batch =1.7