1A) Given the data set -44, 31, 25, 16, 73, 25, 63, 10, 23, 11, 73, 21. X Frequency 10 1 11 1 16 1 21 1 23 1 25 2 31 1 44 1 63 1 73 3 415 12
X= 10, 11, 16, 21, 23, 25, 25, 31, 44, 63, 73,
Mean= 415
12 415 -360 55 -48 70 -60 100 -96 40…show more content… Edinburg to London 4.3 hours. 4. 3 1.8 x 100
-2.5 4.3 1 1.8 = 0.4186 x 100= 41.86%
= 42%
6)
What is the probability that a die, tossed twice would yield an odd number? Explain the progress.
1st Dice- 1-6. 1,2,3,4,5,6 Odd numbers, 1,3,5
The probability is 3
3/6 is equivalent to ½
2nd
The probability for the second dice can be 1,3,5
The probability is 3/6
3/6 x 3/6 = 9/36= 1/4
7) Lucy just brought a pizza and intends to share it, if the pizza is sliced in six parts, what proportion in percent would Lucy have given out, if she gave two slices to her friends? Show working
6 parts of pizza
2 slices given out = 2/6 x 100/1 = 1/3 x 100/1
-99 10 - 9 1 = 33.3
8) A student oyster card in the transport for London (TFL) underground trains cost 1/3 of the standard weekly fare, between each zone.
Declan, is a student living in GoodMayes zone 4, and travels to school and his part time work in and around zone 1. How much would he be paying and saving if the weekly oyster card cost £45.45p between zones 1 and 4? Show working.
