stˈʌdi skˈoːɹz ɑːɹ kˈælkjʊlˌeɪɾᵻd ɐkˈoːɹdɪŋ tʊ ɐ nˈoːɹməl dˌɪstɹɪbjˈuːʃən, wˌɛɹ ðə mˈiːn ɪz θˈɜːɾi ænd ðə stˈændɚd dˌiːvɪˈeɪʃən ɪz sˈɛvən, wɪð mˈoʊst stˈʌdi skˈoːɹz fˈɔːlɪŋ ɪnðə ɹˈeɪndʒ twˈɛnti θɹˈiː tə θˈɜːɾi sˈɛvən, ænd ɐ stˈʌdi skˈoːɹ ʌv fˈoːɹɾi ɔːɹ mˈoːɹ plˈeɪsᵻz ɐ stˈuːdənt ɪnðə tˈɑːp nˈaɪn pɚsˈɛnt ʌv ˈɔːl stˈuːdənts ɪn ðæt sˈʌbdʒɛkt.
Study scores are calculated according to a normal distribution, where the mean is 30 and the standard deviation is 7, with most study scores falling in the range 23 to 37, and a study score of 40 or more places a student in the top 9% of all students in that subject.