Out of the 80 customers surveyed, 65 of them liked the iphone the most. if 500 people were given the same survey, predict how many would prefer an iphone?

What is the frequency of the sinusoidal graph?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

What is the average diastolic blood pressure for adults