Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Maths Edexcel
  5. Question bank

Regression, Correlation and Hypothesis Testing

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193
Question 137

The population of a bacterial colony, PPP, is being monitored in a laboratory. The number of bacteria is modelled by the equation

log⁡10P=2+0.04t \log_{10} P = 2 + 0.04t log10​P=2+0.04t

where t t\,t is the time in hours after monitoring began.

Use the equation of the model to answer parts (a) and (b).

a.

Find the initial population of the bacterial colony.

[2]
b.

After T T\,T hours, the population reaches 500. Find the value of TTT, giving your answer to 2 decimal places.

[3]

Regression, Correlation and Hypothesis Testing Questions

  1. A Level
  2. /Maths
  3. /Regression, Correlation and Hypothesis Testing

Practise Edexcel A Level Maths Regression, Correlation and Hypothesis Testing with exam-style questions for A Level Maths. 202 questions covering Exponential Models, Measuring Correlation, and Hypothesis Testing for Zero Correlation, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank