In testing circuit boards, a quality control
specialist found 3 out of 250 boards to be
defective. Predict how many defective circuit
boards may be expected out of the next
1,750 boards?

21

Step-by-step explanation:

To find the number of defective items in a sample size n, the number is given by

E=np

Where p is the probability and n is the sample size.

Probability is given as 3/250=0.012

Sample size is given as 1750 boards

By substituting 0.012 for p and 1750 for n then the expected defective boards will be

E=0.012*1750=21

Therefore, it is likely that 21 boards are defective.

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )