Question: 1. X is a normally distributed variable with mean = 30 and standard deviation =4. Find the probability that in a randomly selected week the

1. X is a normally distributed variable with mean = 30 and standard

deviation =4.

Find the probability that in a randomly selected week the total charges will be:

(i) less than P3,000;

(ii) more than P500; and

(iii) between P2,250 and P2,950.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Q:

1. PROBLEM SOLVING: 1. Joy and Ligaya took an entrance examination in their dream school. Scores are normally distributed with a mean of 120 and a standard deviation of 10. If Joy's z-score is -0.5...

Q:

Solve the following questions 1.Mendel generated 580 offspring peas. He claimed that 75%,or 435, of them would have green pods. The actual experiment resulted in 428 peas with green pods. a)Assuming...

Q:

3;What % of cases fall between a score of 120 and a score of 88 in a normal distribution with Mean = 100 and S = 16? 4.Using the data in problem # 3, what percent of area falls between a score of 123...

Q:

X is a normally normally distributed variable with mean = 30 and standard deviation = 4. Find a) P(x

Q:

X is a normally normally distributed variable with mean = 30 and standard deviation = 4. Find a) P(x 21) c) P(30

Q:

Hello Tutor, Can you please answer these questions. I don't need explanation, I just need the right questions. This cours is BUSN1009 Quantitative Methods (Statistics) The area to the left of the...

Q:

A random variable X is is normally distributed with the mean 7 and standard deviation 5. Find the probability that X is between 1 and 11.

Q:

1. The expected (mean) life of a particular type of light bulb is 1000 hours with a standard deviation of 50 hours. The life of this bulb is normally distributed. What is the probability that a...

Q:

2. Assume that the readings on the thermometers are normally distributed with a mean of 0 and standard deviation of 1.00C. A thermometer is randomly selected and tested. Draw a sketch and find the...

Q:

Hi! Can you help me solve these probably density questions? Thank you! 10. [-/6.66 Points] DETAILS WANEFMAC7 9.5.010. MY NOTES You may need to use the appropriate appendix table or technology to...

Q:

Suppose a certain population of observations is normally distributed. (a) Find the value of z* such that 95% of the observations in the population are between - z* and + z* on the Z scale. (b) Find...

Q:

The inner and outer conductors of a coaxial cable have radii of 0.5 cm and 1 cm, respectively. The conductors are made of copper with r = 1, r = 1 and 5.8 x...

Q:

Suppose S is an uncountable set. Is it possible that P s 0 for every single s S ? Why or why not?

Q:

Service level is O A. something that should be minimized in retail O B. calculated as the cost of an overage divided by the cost of shortage + the cost of overage) for single period models. O c. the...

Q:

Take responsibility for the other persons or others experience of the situation.

Q:

Pollution

Q:

The fear of making a fool of oneself