Respuesta :
Answer: 70
Step-by-step explanation:
In one day, the company produced screws = 3,500
⇒ In two days, the company produced screws = 2 × 3,500 = 7,000
Since, In out of 100 randomly chosen screws reveals that 4 of them have incorrect lengths, 5 have incorrect diameters, and 3 have both incorrect lengths and diameters.
Thus, we can write, the percentage of incorrect length = 4%
And, the percentage of incorrect diameter = 5%
Also, the percentage of both incorrect lengths and diameters = 3%
⇒ The percentage that only length is incorrect = the percentage of incorrect length - the percentage of both incorrect lengths and diameters = 4% - 3% = 1%
That is, out of total screws 1 % of screws has only incorrect length,
⇒ Out of 7000 screws the number of screws that has only incorrect length = 1% of 7000 = 70
Thus, In 2 days the predicted number of screws that has incorrect length only = 70
