Answer:
- B. The probability that the student received a grade better than C is 0.45
Step-by-step explanation:
<u>Total number of students:</u>
- 15 + 30 + 35 + 16 + 4 = 100
<h3>Statements</h3>
A.
- p(<D) = 4/100 = 0.04
- 0.04 ≠ 0.2
- Incorrect
B.
- p(>C) = (30 + 15)/100 = 45/100 = 0.45
- 0.45 = 0.45
- Correct
C.
- p(not A or B) = (100 - 15 - 30)/100 = 55/100 = 0.55
- 0.55 ≠ 0.45
- Incorrect
D.
- p(B or C) = (30 + 35)/100 = 65/100 = 0.65
- 0.65 ≠ 0.35
- Incorrect
Answer:
the speed of the plane was 210 mph.
Step-by-step explanation:
Answer:
2 : 7
Step-by-step explanation:
6 : 21 (6 for 6 days and 21 days in 3 weeks)
2 : 7 (Simplify by dividing by 3)
All triangles add up to 180 so it’s 20°
Aneesha is traveling at a rate of 4400 feet per second, which means that Morris is traveling a a rate of 4397 feet per second
