Answer:
D
Step-by-step explanation:
To subtract a negative is basically adding because the negatives cancel out.
The probability that in any one sample, two calculators or less will be faulty is; 100%
<h3>Probability and Random sampling</h3>
According to the task content;
- A statement of fact indicates that; 20% of the calculators produced in a factory are faulty.
Hence, it follows that, when a sample of 10 calculators is selected randomly each day, 2 of the calculators are faulty by proportion.
Ultimately, the probability that in any one sample, two calculators or less will be faulty is; 100%.
Read more on probability and Random sampling;
brainly.com/question/25403659
+2,+2,+2,-2,-2,-2,+2,+2,+2 etc
Answer:
680 kilometer per hour
Step-by-step explanation:
Since the area of a circle is PiR^2, we need to divide by Pi, then square root the remaining answer.
750/3.14 = 238.85
The sq rt of 238.85 = 15.45
The radius is ~15.5mm or 16mm if rounded.
