Dr. jian is interested in gendered differences in visual spatial abilities. he obtains data from 10 females from low socioeconomic status (ses) backgrounds who are between 18 and 22 and 5 males from high ses backgrounds who are between the ages of 18 and 55. dr. jian has decided to obtain data from more participants who make up a more sample.

Representative.

Explanation:

Dr. Jian collected data from a total of 15 humans out of which 10 are females and 5 are males.Females are form low SES background and Males are from high SES background. Jian decided to collect data from more participants because he want the sample to be more representative.15 is a low number which will not give him correct results.

i don't get what you mean

explanation:

jupiter is mainly composed of hydrogen and helium just like a star. spectral analysis of jupiter has revealed that in addition to hydrogen and helium, the planet is made of water, methane and ammonia. those elements are in trace amounts. the core of the planet is thought to contain some rock and metallic hydrogen. i hope this will give you the answer to your question! : d