- Messages
- 23
- Reaction score
- 5
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- 13
so any doubts or questions im open,,, 
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Physics P4 and Maths P6,, lets study together in these final moments :P
- Thread starter abdulmoizmehmood
- Start date
- Messages
- 69
- Reaction score
- 32
- Points
- 18
I need some help please.
November 2011, 61, Q7 part 3.
7. Bag A contains 4 balls numbered 2, 4, 5, 8. Bag B contains 5 balls numbered 1, 3, 6, 8, 8. Bag C
contains 7 balls numbered 2, 7, 8, 8, 8, 8, 9. One ball is selected at random from each bag.
(i) Find the probability that exactly two of the selected balls have the same number. [5]
(ii) Given that exactly two of the selected balls have the same number, find the probability that they
are both numbered 2. [2]
(iii) Event X is ‘exactly two of the selected balls have the same number’. Event Y is ‘the ball selected
from bag A has number 2’. Showing your working, determine whether events X and Y are
independent or not.
I can't get how to get the P(X and Y) which is needed for part 3.
November 2011, 61, Q7 part 3.
7. Bag A contains 4 balls numbered 2, 4, 5, 8. Bag B contains 5 balls numbered 1, 3, 6, 8, 8. Bag C
contains 7 balls numbered 2, 7, 8, 8, 8, 8, 9. One ball is selected at random from each bag.
(i) Find the probability that exactly two of the selected balls have the same number. [5]
(ii) Given that exactly two of the selected balls have the same number, find the probability that they
are both numbered 2. [2]
(iii) Event X is ‘exactly two of the selected balls have the same number’. Event Y is ‘the ball selected
from bag A has number 2’. Showing your working, determine whether events X and Y are
independent or not.
I can't get how to get the P(X and Y) which is needed for part 3.
- Messages
- 56
- Reaction score
- 61
- Points
- 28
Could anyone explain,in detail,question 11(b)(iii) of this paper..?
http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s09_qp_4.pdf
http://papers.xtremepapers.com/CIE/...and AS Level/Physics (9702)/9702_s09_qp_4.pdf
so any doubts or questions im open,,,
please can anybody give me summarised easy notes on "PSTN" and "MOBILE AND CELLPHONE NETWORK" from TELECOMMUNICATION in phy applications
I cant understand these two topics ...
Also if u have summarised notes(that have all necessary info) for the MEDICAL part of application,,please tell me that too !!!
- Messages
- 56
- Reaction score
- 61
- Points
- 28
- Messages
- 66
- Reaction score
- 20
- Points
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Can u please give me the answer for these questions..Thank u
1.)Give an example for a statement of Fact and write down the data that could be extracted from it. What are the variables in your data? Point out a qualitative variable, a discrete variable in your data and state whether they assume continuous values or discrete values.
2.)Explain the following drawbacks in the application of stem and leaf diagram to a data set?
(a) Unsuitable for a single digit data set
(b) More meaningful if it is ordered
(c) Not useful if the stem assumes the same number
(d) Not suitable for large data sets
1.)Give an example for a statement of Fact and write down the data that could be extracted from it. What are the variables in your data? Point out a qualitative variable, a discrete variable in your data and state whether they assume continuous values or discrete values.
2.)Explain the following drawbacks in the application of stem and leaf diagram to a data set?
(a) Unsuitable for a single digit data set
(b) More meaningful if it is ordered
(c) Not useful if the stem assumes the same number
(d) Not suitable for large data sets