Need help with this lesson is Graphing Polynomials
1 answer:
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Answer:
- The minimum height is 154 cm
- The first quartile Q1 is 168.8 cm
- The second quartile Q2 (or the median) is 171.9 cm
- Q3 is 183.9 cm
- the maximum height is 193 cm
Step-by-step explanation:
Box plot allows to identify minimum point, maximum point, Q1, Q3 and the median.
See the below (attached) image for the locations of the minimum point, maximum point, Q1, Q3 and the median.
Answer:
a) 0.48
b) 0.6645
c) 12.5
Step-by-step explanation:
For each person, there are only two possible outcomes. Either they are left-handed, or they are not. The probabilities of each person being left-handed are independent. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
The standard deviation of the binomial distribution is:
The number of trials expected to find r sucesses is given by
In this problem we have that:
Assume that 8% of people are left-handed. We select 6 people at random.
This means that
a) How many lefties do you expect?
b) With what standard deviation?
c) If we keep picking people until we find a lefty, how long do you expect it will take?
Number of trials to find 1 success. So