Answer:
0.75%
Step-by-step explanation:
First, do 3 divided by 4 which is 0.0075. But this is in decimal form, so we have to multiply this by 100. 0.0075 x 100 is 0.75, so therefore the fraction, 3/400 as an percentage is 0.75%. I hope this makes sense!
Answer:
The probability that exactly 4 are in favor the new building project is 0.1672.
Step-by-step explanation:
Let <em>X</em> denote the number of people who are in favor of a new building project.
The proportion of people who are in favor of a new building project is, <em>p</em> = 0.60.
A random sample of <em>n</em> = 9 people are chosen.
Every person has independent opinion about the new building project.
Thus, the random variable <em>X</em> follows a binomial distribution with parameters <em>n</em> = 9 and <em>p</em> = 0.60.
Compute the probability that exactly 4 are in favor the new building project as follows:
Thus, the probability that exactly 4 are in favor the new building project is 0.1672.
Answer:
55mph
None of the option is correct
Step-by-step explanation:
Let v be the speed and t as the time taken. If speed varies inversely as the time it takes to drive, then v ∝ 1/t.
v = k/t where k is the constant of proportionality.
IF it takes Kris 5 hours when driving at 55 mph, then v = 55mph when t = 5 hours.
Substituting this values into the formula above;
55 = k/5
k = 55*5
k = 275mp/hr²
To calculate the speed it will Martin to drive for 5 hours, we will substitute k = 275 and t = 5 into the original equation v = k/t
v = 275/5
v = 55 mph
<em>Hence, martin will also need to drive at 55mph to take 5 hours</em>
Monday = - 2.1 Celcius
Tuesday = 15.2
Wednesday = 5
Thursday = - 4.6
Friday = 0
What was the average temperature for the first week in December?
The average temperature = (- 2.1 + 15.2 + 5 - 4.6 + 0)/5 = (20.2 - 6.7)/5 = 13.5/5 = 2.7°C