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KatRina [158]
3 years ago
9

3. There are 500 students in Pures College, 150 students are enrolled in Statistics course and 80 students are enrolled in a Mat

hs course. There are 30 students who are taking both Statistics and Maths courses. (6 marks) Required: If a student is chosen at random a. What is the probability that the student is taking Statistics b. What is the probability that the student is taking Maths given that the student is also taking Statistics c. What is the probability that the student is taking Statistics given that the student is also taking Maths
SAT
1 answer:
slega [8]3 years ago
5 0

Answer:

a. 0.3

b. 0.2

c.0.375

Explanation:

A.  is asking for the number of students taking stats divided by the total Students. So in this case 150/500 which equals 0.3

B. This is asking for the number of students taking both stats and math divided by the number of students that are taking stats. So 30/150 which equals 0.2

C. This is asking for the number of students taking both stats and math divided by the number of students that are taking math. So 30/80 which equals 0.375

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Identify the compound with the highest magnitude of lattice energy.
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Answer:

The lattice energies for the alkali metal halides is therefore largest for LiF and smallest for CsI, as shown in the table below. The ionic bond should also become stronger as the charge on the ions becomes larger.

Explanation:

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2 years ago
What is the advantage of timing over a shorter period of time especially after exercising
Arada [10]

Answer:

Exercise is what we do when we are to increase are strength, stamina, and even our breathing. It is considered important, since it helps our body to become physically healthy. Our muscles need Exercise to not loosen its figure or shape. You can actually tell when someone does exercises and to those who not. It also decreases high content of fat inside our body. Fat is normal to be present in the body, but too much of it endangers our health and life if in a serious matter. It is better to have a proper timing to have a cool down to avoid feeling dizzy and lightheaded after an exercise. Stretching is important to give the muscle time to recover and to reduce muscle soreness, relax tensions, accelerate your recovery process to perform better on the next workout or exercise. There are many types of exercise that helps our body produce sweat and burns unnecessary fats. These are:

1. Aerobic

2. Flexibility

3. Strength

4. Balance

Explanation:

1. Aerobic-this exercise includes activities like running and swimming, to help your cardiovascular system to have much more endurance.

2. Flexibility-mostly used in warm-ups, flexibility is about stretching your muscles to the point it will get used to it after some time.

3. Strength-includes weight lifting, it makes the muscles more compact and reduces fat the faster way.

4. Balance- whenever we are standing

in one leg to balancing yourself while standing. Balance exercise is important in stabilizing yourself.

These exercises can go to beginner level to pure athlete type. Which means it isn't a joke to perform one of these. It requires focus and effort for a long period of time. It can be extreme if necessary. But take into mind that doing so much or doing it without rest is pure evil.

Drink to re-hydrate yourself. A warm water will help the arteries to loosen and help in proper blood circulation. Replenishing your body's water supply can increase your flexibility and strength. It is also nice to take a cool shower and change your clothing as well. And munch on a little snack will help you gain the energy you used during Exercise. Be careful to eat the right snack to avoid gaining weight.

The advantage of timing is you allow your

muscles and your body to keep up with your

work-out, your giving it time to fully take in

what you are working on. There is such thing

as overworking your body, which may cause

serious trouble.

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