Problemas

Here are the top 20 salaries (in millions of dollars) of CEOs in 2018. Complete parts (a) through (e) below. For part (a) and (b), begin with lower class limit 30 million dollars and class width 10 million dollars. 37.5 & 36.3 & 53.6 & 42.4 & 42.8 68.4 & 40.7 & 49.0 & 45.1 & 67.2 61.0 & 103.2 & 41.5 & 34.5 & 40.8 35.9 & 70.6 & 42.2 & 43.2 & 102.2 b. Construct a relative frequency table. (Type integers or decimals. Do not round.) Class (millions of dollars) & Relative Frequency 30-39.9 & 0.20 40-49.9 & 0.45 50-59.9 & 0.05 60-69.9 & 0.15 70-79.9 & 0.05 80-89.9 & 0.00 90-99.9 & 0.00 100-109.9 & 0.10 c. How many of the observations are less than 60 million? There are 14 observations less than 60 million. d. What proportion of the observations are between 40 million and 59.9 million, inclusive? The proportion of the observations that are between 40 million and 59.9 million, inclusive, is square . (Type an integer or a decimal. Do not round.)
Solución
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Eugenioprofessionell · Tutor durante 6 años
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To determine the proportion of observations between $40 million and $59.9 million, inclusive, we need to sum the relative frequencies for the classes \(40-49.9\) and \(50-59.9\).<br /><br />From the relative frequency table:<br />- Relative frequency for \(40-49.9\): \(0.45\)<br />- Relative frequency for \(50-59.9\): \(0.05\)<br /><br />Adding these together:<br />\[<br />0.45 + 0.05 = 0.50<br />\]<br /><br />Thus, the proportion of observations between \( \$40 \) million and \( \$59.9 \) million, inclusive, is **0.50**.
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