Answer:
4.4
Step-by-step explanation:
The mean is the sum of the data divided by the number of data values. so add them all together and then divide by how many numbers you added together.
Here is an example 1,3,4,5,7 so add 1+3+4+5+7=20 then you divide 20 by 5 and the mean is 4 for this example.
the answer is c 3/2 x - 3 = y. :)
Answer:
Step-by-step explanation:
In No.1
First you find the total number of girls which is 56-20 =36 girls in total
So to get number of boys who watched tennis 20-13=7 boys watched tennis
To get number of girls who didnt watch you do 36-17=19 girls who watched
Then add o get the totals
No.2
First you get the total number of male 80-47=33 males
Next you find the number of females doing phyisics 33-19=14 females
Next you find the number of females doing chemistry by 47-(18 + 14)=15 females
To get the number of males diong chemistry 21-15=6 males
Number of males doing biology 33-(19+6)=8
Then find the remaining totals
2
No. 2 (b)
Because there is a high number of students doing physics and most of them are female
Answer:tiz x
Step-by-step explanation:
Answer:
600
Step-by-step explanation:
Harry invests £5000 for 3 years.
He gets a simple interest of 4% per year.
Work out the total interest Harry gets.
Solution
The formula for simple interest
S.I = P*R*T/100
Where P = Principal = £5000
R = Rate = 4%
T = Time = 3 years
£ 5000 * 4 * 3 /100
50 * 4 * 3
£ 600.
