Write a C program named as listLetterFreq.c that lists the frequency of the letters from the input via ignoring the case sensitivity. For example, sample outputs could be like below.

Please input a string:

This is a list of courses. CSC 1010 - COMPUTERS & APPLICATION

Here is the letter frequency:

Letter a or A appears 3 times

Letter b or B appears 0 times

Letter c or C appears 5 times

Letter d or D appears 0 times

Letter e or E appears 2 times

Letter f or F appears 1 times

Letter g or G appears 0 times

Letter h or H appears 1 times

Letter i or I appears 5 times

Letter j or J appears 0 times

Letter k or K appears 0 times

Letter l or L appears 2 times

Letter m or M appears 1 times

Letter n or N appears 1 times

Letter o or O appears 4 times

Letter p or P appears 3 times

Letter q or Q appears 0 times

Letter r or R appears 2 times

Letter s or S appears 8 times

Letter t or T appears 4 times

Letter u or U appears 2 times

Letter v or V appears 0 times

Letter w or W appears 0 times

Letter x or X appears 0 times

Letter y or Y appears 0 times

Letter z or Z appears 0 times

****Please answer them all, if you cannot, please skip****

Here are scores received by a class of Biology students on a 40 point exam. Each number is the score, out of 40 points, received by one student. The data are separated by gender.

Scores, out of 40 points, received by female students:
17, 20, 30, 31, 31, 33.6, 34, 34.5, 35, 35, 36, 35.6, 36, 36, 36, 37, 37.5, 37, 38, 38

Scores, out of 40 points, received by male students:
11.5, 21.5, 22.5, 22.5, 23.5, 26, 28, 29, 30.5, 30.5, 30.5, 31, 32, 32.8, 34, 34, 35.4, 36, 36.5

1) On average, grades for females in this class go up from the female Mean exam score to _______ points.

Choose from the following options:

37, 37.18, 37.2, 39, 109.6

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2) On average, grades for females in class go down from the female Mean exam score to ______ points.

Choose from the following options:

29.6, 29.1, 29.0, 27.8, 20.6

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3) What is the Average Deviation in the exam scores for male students?

Choose from the following options:

92.7 points, 6.3 points, 6 points, 4.9 points. 4.8 points

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4) On average, grades for males in this class go up from the male Mean exam score to _______ points.

Choose from the following options:

33.7, 35.1, 34, 34.0, 121.5

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5) On average, grades for males in class go down from the male Mean exam score to ______ points.

Choose from the following options:

4.9, 23, 22.5, 23.9, 24.9

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6) Which of the following six statements is correct?

Choose from the following choices:

a) There is no meaningful difference in grades between female and male students on this exam. We can tell this because the Mean scores are not very different between females and males.

b) Female students did meaningfully better on this exam than male students. We can tell this because the Mean grade for females was higher than the Mean grade for males.

c) Female students did meaningfully better on this exam than male students. We can tell this because the Average Deviation in grades for females is a smaller number than the Average Deviation in grades for males.

d) Female students did meaningfully better on this exam than male students. We can tell this because the Average Deviation in grades for females went higher on the Figure than the Average Deviation in grades for males.

e) Male students did meaningfully better on this exam than female students. We can tell this because the Average Deviation in grades for males is a larger number than the Average Deviation in grades for females.

f) There is no meaningful difference in grades between female and male students on this exam. We can tell this because the Average Deviation lines of female and male students overlap by a large amount.

Do you think student loans are a benefit to students, a detriment to students, or both? Explain in about words please.

College administrators want to know if students would be willing to pay a new fee if most of it would be budgeted for Student Activities. A random sample of 632 students resulted in 516 that would be willing to pay the new fee. Construct a 90% Confidence Interval estimate for the proportion of students willing to pay the new fee.

A group of 10 students who wish to enter a university achieve the following scores:

25, 17 , 29 , 29, 26, 24 , 23 , 26 , 24 , 33

...Construct a confidence interval for the proportion of students scoring 26 points or less.

...construct a 90% confidence interval for the average score of all students

A biology class has 28 students. Find the probability that at least two students in the class have the same birthday. For​ simplicity, assume that there are always 365 days in a year and that birth rates are constant throughout the year.​ (Hint: First, determine the probability that no 2 students have the same birthday and then apply the complementation​ rule.)

30 students enter classroom 319 through two doors. Assume that the probability of entering through the left door is the same as the probability of entering through the right door and is 1/2. What is the probability of the event that 30% of the students enter through the left door and 70% of the students enter through the right door?

A professor in a graduate course wants to form a team of three students to represent the class at a national case competition? Of the 20 students in the class, 5 have undergraduate degrees in Economics, 9 in Engineering and 6 in business. If the team is formed at random, what is the probability that there will be at least two students with different undergraduate majors on the team?

Suppose that the distribution for total amounts spent by students vacationing for a week in Florida is normally distributed with a mean of 650 and a standard deviation of 120. Suppose you take a SRS of 15 students from this distribution. What is the probability that an SRS of 15 students will spend an average of between 600and700? Round to five decimal places.