To receive Grade ‘A’ in a course, one must obtain an average of 90 marks ormore in five examinations (each of 100 marks). If Sunita’s marks in first fourexaminations are 87, 92, 94 and 95, find minimum marks that Sunita must obtain in fifth examination to get grade ‘A’ in the course.

Q: There are 4 bone-in prime rib cuts in each 109 beef loin and 5 bone-in prime rib cuts in each export…

A: Given: There are 4 bone-in prime rib cuts in each 109 beef loin and 5 bone-in prime rib cuts in each…

Q: If the sum of n even natural number is 420,find the value of n

A:

Q: Find the number of ways to distribute 12 people into 3 classrooms, empty classrooms are allowed.

A: Find the number of ways to distribute 12 people into 3 classrooms, empty classrooms are allowed.

Q: Emma’s 100-meter dash time is ranked at the 96thpercentile among all highschool sprinters in the…

A: We have to find Emma's rank.

Q: An instructor has graded 30 exam papers submitted by students in a class of 31 students, and the…

A: Answer Given 30 exam papers31 studentsaverage =68

Q: In a class of 50 students, 10 have failed and their average of marks is 2 5. The total narks secured…

A: Given: total 50 students 10 failed students average of failed students is 2.5 total marks 281

Q: The class consist of 50 students of which 35 are boys and remaining are girls. The average marks of…

A: Given that, Total =50 No.of boys =35 No.of girls=15 Average marks .of boys =45 Average marks .of…

Q: Initially, there are 400 bacteria and after 9 hours, 900 bacteria are observed in the culture. Find…

A:

Q: A pianist plans to play 5 pieces at a recital from her repertoire of 22 pieces. How many different…

A: Permutation formula: nPr = n!/(n-r)!

Q: An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the…

A:

Q: How many pairs to sum an even number or one greater than 9?

A: Please see the below picture for detailed solution.

Q: In a competition, there are 200 participants. Points were distributed as such that each participant…

A: Given that there are 200 participants in a competition. The winner got 2400 points Point is…

Q: An instructor has graded 23 exam papers submitted by students in a class of 24 students, and the…

A: Given An instructor has graded 23 exam papers submitted by students in a class of 24 students, and…

Q: According to the last will of Don Pedro, 5 heirs will divide his wealth. Heir 1 will receive 20% of…

A: Let the value of Don Pedro's wealth be x Heir 1 will receive 20% of the wealth i.e. 0.2x The…

Q: please explain using the formula  How many ways are there to distribute 7 cookies to 4 kids so that…

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Q: If I attend a movie marathon of 3 movies and their respective run times are 147, 121 minutes and 92…

A:

Q: the stanford womens basketball team made 45 field goals in a recent game; some were 2-pointers and…

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Q: Vrishna worked 43 hours in 7 days. hours clid How many sthe work gach day? equetion. unte an

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Q: the sum of the ages of Juman ans Nina is 112 years ago. 6 years ago, Juwan age was 4 time Nina's…

A: Using given information we will solve the question.

Q: he number of chickens and goats in a field totals 40. The total number of legs among them is 102.…

A: Given: Total chickens and goats in field =40 Total legs = 102 Solution: Now let us assume, Number of…

Q: A pianist plans to play 4 pieces at a recital from her repertoire of 25 pieces. How many different…

A: Given : No. of repertoire pieces = 25 A pianist plans to play 4 pieces i.e n = 4

Q: If all the books on a shelf with fewer than 45 books were put into piles of five books each, no…

A: number of books is m, m < 45. If they are arranged into piles of five books, each no books would…

Q: the par level for reorder of enablex (darifenacin) for overactive bladder is 500 tablets. The…

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Q: The country of Sokovia regulations states that plate numbers for cars should be composed by 4…

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A:

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A:

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.