Statistics - math word problems - page 22 of 42
Number of problems found: 836
- Average mark
Calculate the average mark in English if a student got a couple of 3's, 20% less two than 3, and 50% more 1's than the 2's. - Midpoint of line segment
Find the midpoint of the line segment joining the points (10,1) and (-8,-1). - Harmonic 4
Find the harmonic mean of -6 and 5. - Students 83149
There are 30 students in the class. Five had a mark three — other twos and ones. The average grade was 1.9. How many students got mark one?
- Fifteen
Fifteen students had an average age of 12 years. When the class teacher came to see them, their average increased by exactly one year. How old was the teacher? - Remaining 2787
Fifty students took a math test. The average number of points was 68. The top 10 students scored 100 points. What is the average number of points for the remaining 40 students? - Troops
The tourist group has two leaders, with an average age of 30, and several children, with an average age of 10. The total age of the group is 12. How many children are in the group? - Nuts
Peter has 49 nuts. Walnuts have three more than hazelnuts and hazelnut two over almonds. Determine the number of walnuts, almonds, and hazelnuts. - 9th-grade 5864
9th-grade students were marked 28 students. ... .1 25% of students. ..2 40% of students. ..3 How many students were there in the 9th grade?
- Average age
The company of five people has an average age of 46 years. The average age of the first four is 43 years. How many years has the fifth member of this company? - Population 5039
Each Martian has 1,2,3 feeler on his head 1 feeler = 2% of the population 2 antennae = 97% of the population 3 tentacles = 1% of the population What percentage of Martians have more antennae on their heads than the population average? - Arithmetic mean - parabola
Find the value of k so that k² + 2k – 3 is the arithmetic mean between k² + 4k + 5 and k² – 6k + 10. - Rich retirement
Healthcare issues are receiving much attention in both academic and political arenas. A sociologist recently surveyed citizens over 60 years of age whose net worth is too high to qualify for government health care but who have no private health insurance. - Arithmetic 83094
There were 31 students in the class, and the arithmetic average weight was 43 kg. Calculate the average weight in the class if a student weighing 91 kg has been added to the class.
- Consecutive 47011
The sum of two consecutive odd numbers is 184. What are these numbers? - The bar chart
The bar chart shows the results of the math test. How many percents of pupils achieved approximately better results than the class average? Diagram: 1-10 pupils, 2-4 pupils, 3-6 pupils, 4-2 pupils, 5-4 pupils. (lowest results are better) - 3y inflation
The price of the cookie rise in the first year by 2%, the second year fell by 6%, and in the third year increased by 17%. Calculate the average annual increase in the price of the cookie. - Find midpoint
FM=5y+13, MG=5-3y, FG=? M is the midpoint of FG. Use the given information to find the missing measure or value. - Angles in a triangle
The angles of the triangle ABC make an arithmetic sequence with the largest angle γ=83°. What sizes have other angles in a triangle?
Khail took his math test and scored 88. If the class average was 78 with a standard deviation of 5, what percent of students earned a higher grade than Khail's grade?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
