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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 re...

KG
Answered by Kate G. Maths tutor
2429 Views

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 pri...

EC
Answered by Edward C. Economics tutor
4249 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 i...

FO
Answered by Fergus O. Chemistry tutor
2303 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...

GW
Answered by George W. Maths tutor
4459 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 t...

GW
Answered by George W. Maths tutor
15790 Views

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