Answer:
1/35
Step-by-Step Explanation:
1. We can think about this problem as the probability of 3 events happening.
The first event is the teacher choosing one student who does not play soccer. The second event is the teacher choosing another student who does not play soccer, given that the teacher already chose someone who does not play soccer , and so on.
2. The probability that the teacher will choose someone who does not play soccer is the number of students who do not play soccer divided by the total number of students: 3/7.
3. Once the teacher's chosen one student, there are only 6 left.
4. There's also one fewer student who does not play soccer, since the teacher isn't going to pick the same student twice.
5. So, the probability that the teacher picks a second student who also does not play soccer is 2/6.
6. The probability of the teacher picking two students who do not play soccer must then be 3/7*2/6.
7. We can continue using the same logic for the rest of the students the teacher picks.
8. So, the probability of the teacher picking 333 students such that none of them play soccer is:
3/7*2/6*1/5=6/210=1/35
5+4/6
Result: 17/3
OR
5+1/2+1/6
5+4/6=17/3
Hope this helps!
Answer:
The answer is Computer Experience.
Step-by-step explanation:
According to empirical rule, the area under the normal distribution or "bell-shaped curve", when plotted as a function of the z-parameter can be defined in terms of percentages.
The z-parameter (or z-score) is defined as
where
x = value of random variable,
μ = the mean,
σ = standard deviation,
The total area under the curve = 1.
The curve below shows that within 2 standard deviations from the mean, the total area under the curve is 95% of the total area.
Answer:
95%
The rate of interest for the amount borrowed by Samantha is 11.75 %
<u>Solution:</u>
Given, Samantha borrowed money to buy lawn equipment to start her new lawn service business.
She borrowed $800 for 9 months and paid $70.50 in interest.
We have to find what was the rate of interest?
Now, amount = $800, simple interest = $70.5, time period = 9 months =
<em><u>Simple Interest is given as:</u></em>
Hence, the interest rate is 11.75%.