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A box contains 7 caramel doughnuts. They have masses of 56 g, 67 g, 45 g, 56 g, 58 g, 49 g and 50 g. Find the median, mean and mode values of these masses. Bonus: What mass of doughnut could be added to the box to make the mean mass = 61 g.

Median: Order the values from lowest to highest: 45, 49, 50, 56, 56, 58, 67. Pick the middle value. Answer = 56 g.Mode: The most common value. Answer = 56 g.Mean: Add all the values up, then divide the resul...
KG
Answered by Kate G. • Maths tutor
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Explain a constraint to economic development and offer a policy prescription

Countries who are dependent on primary products often are constrained in achieving economic development. Such a dependency offers two distinct issues. Firstly, as demand and supply for commodities are price ...
EC
Answered by Edward C. • Economics tutor
5901 Views

Explain the trends in first ionisation energy in the second period in the periodic table.

This question is designed to test a students knowledge of electronic configuration in elements, and their ability to use this knowledge to assign a reasoning to the trend given. The general trend is an incre...
FO
Answered by Fergus O. • Chemistry tutor
3383 Views

√5( √8 +√18) can be written in the form a√10 where a is an integer.

First, I would take into account the important parts of the question. I'm looking for an answer in the form of "a√10, where a is an integer". I would explain if not known that an integer is just a ...
GW
Answered by George W. • Maths tutor
5715 Views

There are only red , blue and purple counters in a bag. The ratio of the number of red counters to the number of blue counters is 3 : 17. If a counter is taken randomly the probability that it is purple is 0.2 Work out the probability for it to be red.

I would first take into account all the variables - there are red, blue and purple counters, we know the ratio of red to blue and we know the probability of purple is 0.2. As I know the probability that purp...
GW
Answered by George W. • Maths tutor
18248 Views