Answer:
Solution:-
Frequency Distribution Frequency Mid values F*M
0 - 10 8 5 40
10 - 20 x 15 15x
20 - 30 10 25 250
30 - 40 11 35 385
40 - 50 9 45 405
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Σf = 38+x Σfm = 1080+15x
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Given Mean = 25.2
Mean = Σfm/Σf
25.2 = 1080+15x/38+x
25.2 × (38+x) = 1080+15x
957.6+25.2x = 1080+15x
25.2x - 15x = 1080 - 957.6
10.2x = 122.4
x = 122.4/10.2
x = 12
Missing frequency = 12 Answer
Volume of a cylinder = πr²h
Volume of the cylinder = π (2 3/16)² (3)
Volume of the cylinder= 45.10 in³
Answer: 45.10 in³
Answer:
2: 6,8
Step-by-step explanation:
2) Look at the range from 6-8 then look at the frequency. The frequency is the highest so that is the most frequent range that they scored in.
I apologise for only answering one question. I don't have access to paper rn and this is hard stuff to do in my head.
Answer:
B 25.0 is the right answer
Step-by-step explanation:
Step-by-step explanation:
Taking the triangle ADC, we have 0.67 as the hypotenuse which is the diagonal of the rectangle. Since AD=BC=0.32 and looking at the triangle, we only have one side missing.
By using Pythagorean Theorem:
a² + b² = c²
Where c is the hypotenuse, a and b are the two other sides.
Hypotenuse is given, one side is given, we are now left with one unknown and that is side AB.