The high temperature for seven january days along with the number of cups of hot chocolate sold for those days at a coffee shop are shown in the table below. use these data to complete partsâ a) throughâ d) below.
high temperature
â(degreesâ°âf)
42
39
19
31
26
33
17
cups of hot chocolate sold
37
47
60
52
55
49
66
âa) determine the correlation coefficient between the high temperature and the number of cups of hot chocolate sold.
r=
â(round to the nearest thousandth asâ needed.)

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The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation