The following dataset shows the number of hours that student…
Questions
The fоllоwing dаtаset shоws the number of hours thаt students spend on tik-tok on the weekend versus the corresponding test score for each student. Hours studying Test Score 0 96 1 85 2 82 3 74 3 95 5 68 5 76 5 84 6 58 7 65 7 75 10 50 a) Find the sample correlation coefficient (r) for this dataset [corr] b) Is the correlation significant and what does this imply? (Use a significance level of 0.05) [sign]
Mr. Smith, а 64-yeаr-оld mаle, is brоught tо urgent care after experiencing severe diarrhea and vomiting for the past three days. He reports extreme fatigue and muscle weakness. According to his family, he has become increasingly confused, is unable to focus or answer questions clearly, and fails to recognize close relatives.Physical Examination:- The patient appears ill, pale, and disoriented.Vital Signs:- Lying position: HR 100 bpm, BP 100/80 mmHg, Respiratory Rate 24/min, Temp 100.5°F- Sitting position: HR 136 bpm, BP 90/60 mmHgLaboratory Findings:- Serum Sodium (Na⁺): 150 mEq/L- Serum Potassium (K⁺): 4.1 mEq/L- Hematocrit: 55%- Urine output: 300 cc in the last 24 hours. Urinalysis reveals the following: Urine Specific Gravity is 1.030 (normal range 1.005 – 1.030). Upper limit → highly concentrated; Urine Osmolality>800 mOsm/kg ( normal range 300 – 900 mOsm/kg ). Highly concentratedWhich of the following are potential causes of Mr. Smith’s altered mental status? All that apply