Question

There is a bowl containing 300 plastic tiles. Some of the tiles are yellow and the rest are blue. You take a random sample of 10 tiles and find that 2 are yellow and 8 are blue. How many yellow tiles are there? Write three different expressions A x B for the number of yellow tiles you predict there are based on the random sample, where A and B are numbers derived from among 300, 10, 2, and 8. Explain each expression in detail in terms of quantities in the situation. Support your explanations with math drawings.

Answer #1

Consider a box containing 8 red, 10 blue and 12 yellow balls.
Draw three balls one by one with replacement. Then answer the
following questions:
a) Write down the sample space
b) Calculate the probability that there is at least one red
ball
c) What is the probability that the first two balls are red
d) Calculate the probability that the first two balls are red
given at least one ball is red?
e) What can you conclude based on...

#46 In a survey of 2000 adults 50 years and older of whom 20%
were retired and 80% were pre-retired, the following question was
asked: Do you expect your income needs to vary from year to year in
retirement? Of those who were retired, 23% answered no, and 77%
answered yes. Of those who were pre-retired, 28% answered no, and
72% answered yes. If a respondent in the survey was selected at
random and had answered yes to the question,...

Please summarize the below article in approximately 100
words:
Monumental function in British Neolithic burial practices
Ian Kinnes
The high-risk rate of survival for the non-megalithic series of
Neolithic funerary monuments, recently re-emphasized by Piggott
(1973: 34), introduces a further variable into the deductive study
of burial practices. In Britain and Europe the overall distribution
of monumental forms present both lacunae and a marked preponderance
of cairns over earthen mounds which are in ill accord with the
known or predicted...

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