MATHEMATICS COLLEGE

45% of the population has type o blood. Find the probability that exactly 6 people in a group of 10 random people have type o blood.

Answers

Answer 1

Answer:

0.160

Step-by-step explanation:

Given that:

Percentage population with blood group o = 45%

probability that exactly 6 people in a group of 10 random people have type o blood

Using binomial probability distribution formula :

n = 10, r = 6 ;

Probability of success (p) (population with blood group o = 45% = 0.45

Probability of failure (1 - p) population without blood group o = (1 - 0.45) = 0.55

nCr * p^r * (1 - p)^(n-r)

10C6 * 0.45^6 * 0.55^4

210 * 0.00830 * 0.0915

= 0.1594845

= 0.160

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What is the height of a
triangle with area 893 square
inches and base 38 inches?

Answers

Here is the answer.

Answer:

Step-by-step explanation:

Start by drawing the figure and labeling it with the given information. We are looking for the height of a triangle. The formula for the area of a triangle is A=12bh, where b is the length of the base and h is the height of the triangle. Substituting in the given information and solving for h, we find

A8938931947=12bh=12(38)(h)=h=h

The height is 47 inches.

Please help me 20 points

Answers

Answer:

sureeeeeeeeeeeeeeeeee

Step-by-step explanation:

Researchers suspect that the average number of units earned per semester by college students is rising. A researcher at Calendula College wishes to estimate the number of units earned by students during the spring semester at Calendula. To do so, he randomly selects 100 student transcripts and records the number of units each student earned in the spring term. He found that the average number of semester units completed was 12.96 units per student. Identify the population of interest to the researcher.

Answers

Answer:

All Calendula College students enrolled in the spring.

Step-by-step explanation:

A researcher at Calendula College wishes to estimate the number of units earned by students during the spring semester at Calendula.

To do so, he randomly selects 100 student transcripts from among all Calendula College students enrolled in the spring and records the number of units each student earned in the spring term.

Eric jog 3 1/4 mile on Monday, 5 5/8 miles on Tuesday, and 8 miles on Wednesday. Suppose he continues the pattern for the remainder of the week. How far will Ereck jog on Friday

Answers

Answer:

12 3/4 miles

Step-by-step explanation:

Eric is increasing his distance by 2 3/8 miles per day. In 2 more days, his distance will be 2×(2 3/8) = 4 3/4 miles more than on Wednesday.

... 8 + 4 3/4 = 12 3/4 . . . . miles on Friday

_____

Rate of increase

The difference between Tuesday and Monday is ...

... 5 5/8 - 3 2/8 = 2 3/8

The difference between Wednesday and Tuesday is ...

... 8 - 5 5/8 = 2 3/8

Thus, it appears that Eric is jogging 2 3/8 mile more each day than the day before.

Would give you brainliest whoever answers this correct first !!

Answers

6 is the answer to the question

The United Van Lines moving company has a truck filled for deliveries to five different sites. If the order of the deliveries is randomly selected, what is the probability that it is the shortest route?

Answers

Answer:

0.8333%

Step-by-step explanation:

Assuming that there is only one possible shortest route, the probability that a randomly selected route is given by one divided by the permutation of the order of five different sites:

$P=(1)/((5!)/((5-5)!))=(1)/(5*4*3*2*1)\n P=0.008333=0.8333\%$

There is a 1 in 120 chance, or 0.8333% chance that a randomly selected route is the shortest possible route.

Other Questions

An art teacher makes a batch of purple paint by mixing 7/8 cup blue paint with 7/8 cup red paint. If she mixes 21 batches, how many cups of purple paint will she have

Pls help extra points

Consider a disease whose presence can be identified by carrying out a blood test. Let p denote the probability that a randomly selected individual has the disease. Suppose n individuals are independently selected for testing. One way to proceed is to carry out a separate test on each of the n blood samples. A potentially more economical approach, group testing, was introduced during World War II to identify syphilitic men among army inductees. First, take a part of each blood sample, combine these specimens, and carry out a single test. If no one has the disease, the result will be negative, and only the one test is required. If at least one individual is diseased, the test on the combined sample will yield a positive result, in which case the n individual tests are then carried out. [The article "Random Multiple-Access Communication and Group Testing"† applied these ideas to a communication system in which the dichotomy was active/idle user rather than diseased/nondiseased.] If p = 0.15 and n = 5, what is the expected number of tests using this procedure? (Round your answer to three decimal places.)

Find the arc length of the curve below on the given interval. y equals one third (x squared plus 2 )Superscript 3 divided by 2y= 1 3x2+23/2 on [00,66]