Aquality control inspector has drawn a sample of 1414 light bulbs from a recent production lot. if the number of defective bulbs is 22 or more, the lot fails inspection. suppose 20%20% of the bulbs in the lot are defective. what is the probability that the lot will fail inspection? round your answer to four decimal places.

0.8021

Step-by-step explanation:

The given problem is a binomial distribution problem, where

The formula of binomial distribution is :-

The probability that the lot will fail inspection is given by :_

Hence, the required probability = 0.4365

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

answer: 10 turtles

step-by-step explanation: as turtles have four legs so 4.10=40 therefore birds are 4 which sue counted